2856:, Bokstedt, Hsiang, and Madsen introduced topological cyclic homology, which bore the same relationship to topological Hochschild homology as cyclic homology did to Hochschild homology. The Dennis trace map to topological Hochschild homology factors through topological cyclic homology, providing an even more detailed tool for calculations. In 1996, Dundas, Goodwillie, and McCarthy proved that topological cyclic homology has in a precise sense the same local structure as algebraic
2826:-theory and Hochschild homology. He called this theory topological Hochschild homology because its ground ring should be the sphere spectrum (considered as a ring whose operations are defined only up to homotopy). In the mid-1980s, Bokstedt gave a definition of topological Hochschild homology that satisfied nearly all of Goodwillie's conjectural properties, and this made possible further computations of
5889:
1753:-theory now appeared to be a homology theory for rings and a cohomology theory for varieties. However, many of its basic theorems carried the hypothesis that the ring or variety in question was regular. One of the basic expected relations was a long exact sequence (called the "localization sequence") relating the
795:
in such a way that each additional simplex or cell deformation retracts into a subdivision of the old space. Part of the motivation for this definition is that a subdivision of a triangulation is simple homotopy equivalent to the original triangulation, and therefore two triangulations that share a
772:
had attempted to define the Betti numbers of a manifold in terms of a triangulation. His methods, however, had a serious gap: Poincaré could not prove that two triangulations of a manifold always yielded the same Betti numbers. It was clearly true that Betti numbers were unchanged by subdividing
381:
of the vector bundle. This is a generalization because on a projective
Riemann surface, the Euler characteristic of a line bundle equals the difference in dimensions mentioned previously, the Euler characteristic of the trivial bundle is one minus the genus, and the only nontrivial characteristic
1742:
All abelian categories are exact categories, but not all exact categories are abelian. Because
Quillen was able to work in this more general situation, he was able to use exact categories as tools in his proofs. This technique allowed him to prove many of the basic theorems of algebraic
5711:
3098:
4583:
5654:, it gives a presentation for the unstable K-theory. This presentation is different from the one given here only for symplectic root systems. For non-symplectic root systems, the unstable second K-group with respect to the root system is exactly the stable K-group for GL(
773:
the triangulation, and therefore it was clear that any two triangulations that shared a common subdivision had the same Betti numbers. What was not known was that any two triangulations admitted a common subdivision. This hypothesis became a conjecture known as the
1291:
6918:
5645:
990:. In addition to providing a coherent exposition of the results then known, Bass improved many of the statements of the theorems. Of particular note is that Bass, building on his earlier work with Murthy, provided the first proof of what is now known as the
5415:
1640:). However, Segal's approach was only able to impose relations for split exact sequences, not general exact sequences. In the category of projective modules over a ring, every short exact sequence splits, and so Î-objects could be used to define the
356:
is projective, then these subspaces are finite dimensional. The
RiemannâRoch theorem states that the difference in dimensions between these subspaces is equal to the degree of the line bundle (a measure of twistedness) plus one minus the genus of
6041:
1655:, a category satisfying certain formal properties similar to, but slightly weaker than, the properties satisfied by a category of modules or vector bundles. From this he constructed an auxiliary category using a new device called his "
2772:-theory had to be reformulated. This was done by Thomason in a lengthy monograph which he co-credited to his dead friend Thomas Trobaugh, who he said gave him a key idea in a dream. Thomason combined Waldhausen's construction of
4135:
4865:
816:
is the fundamental group of the target complex. Whitehead found examples of non-trivial torsion and thereby proved that some homotopy equivalences were not simple. The
Whitehead group was later discovered to be a quotient of
4394:
4067:
3811:
1644:-theory of a ring. However, there are non-split short exact sequences in the category of vector bundles on a variety and in the category of all modules over a ring, so Segal's approach did not apply to all cases of interest.
7490:
5884:{\displaystyle K_{2}F\rightarrow \oplus _{\mathbf {p} }K_{1}A/{\mathbf {p} }\rightarrow K_{1}A\rightarrow K_{1}F\rightarrow \oplus _{\mathbf {p} }K_{0}A/{\mathbf {p} }\rightarrow K_{0}A\rightarrow K_{0}F\rightarrow 0\ }
7802:
is a diagram where the arrow on the left is a covering map (hence surjective) and the arrow on the right is injective. This category can then be turned into a topological space using the classifying space construction
2587:
8597:
5261:
3165:
3005:
7692:
6283:
7240:
4408:
11351:, in Algebraic and geometric topology (Proc. Sympos. Pure Math., Stanford Univ., Stanford, Calif., 1976), Part 1, pp. 35â60, Proc. Sympos. Pure Math., XXXII, Amer. Math. Soc., Providence, R.I., 1978.
895:, but elements of that group coming from elementary matrices (matrices corresponding to elementary row or column operations) define equivalent gluings. Motivated by this, the BassâSchanuel definition of
6768:
1352:, and Gersten proved that his and Swan's theories were equivalent, but the two theories were not known to satisfy all the expected properties. Nobile and Villamayor also proposed a definition of higher
6376:
4780:
3678:
507:
7968:
6494:
1182:
6592:
2822:-theory with finite coefficients, it was less successful for rational calculations. Goodwillie, motivated by his "calculus of functors", conjectured the existence of a theory intermediate to
796:
common subdivision must be simple homotopy equivalent. Whitehead proved that simple homotopy equivalence is a finer invariant than homotopy equivalence by introducing an invariant called the
2329:-theory of that open subset. Brown developed such a theory for his thesis. Simultaneously, Gersten had the same idea. At a Seattle conference in autumn of 1972, they together discovered a
1828:-theory of regular varieties had a localization exact sequence. Since this sequence was fundamental to many of the facts in the subject, regularity hypotheses pervaded early work on higher
3284:
2382:
377:
on an algebraic variety (which is the alternating sum of the dimensions of its cohomology groups) equals the Euler characteristic of the trivial bundle plus a correction factor coming from
6814:
5526:
2791:
of sheaves, there was a simple description of when a complex of sheaves could be extended from an open subset of a variety to the whole variety. By applying
Waldhausen's construction of
2446:
7797:
1886:
in his thesis found an invariant similar to Wall's that gives an obstruction to an open manifold being the interior of a compact manifold with boundary. If two manifolds with boundary
5306:
1625:. Where Grothendieck worked with isomorphism classes of bundles, Segal worked with the bundles themselves and used isomorphisms of the bundles as part of his data. This results in a
527:
Grothendieck took the perspective that the
RiemannâRoch theorem is a statement about morphisms of varieties, not the varieties themselves. He proved that there is a homomorphism from
7329:
708:
seemed to satisfy the necessary properties to be the beginning of a cohomology theory of algebraic varieties and of non-commutative rings, there was no clear definition of the higher
701:
except the normalization axiom. The setting of algebraic varieties, however, is much more rigid, and the flexible constructions used in topology were not available. While the group
7374:
6689:
1589:
had a known and accepted definition it was possible to sidestep this difficulty, but it remained technically awkward. Conceptually, the problem was that the definition sprung from
7762:
2362:
3237:
3208:
2089:-cobordisms is the same as a weaker notion called pseudo-isotopy. Hatcher and Wagoner studied the components of the space of pseudo-isotopies and related it to a quotient of
8018:
2149:). This space contains strictly more information than the Whitehead group; for example, the connected component of the trivial cobordism describes the possible cylinders on
6138:
6948:
631:
is a point, a vector bundle is a vector space, the class of a vector space is its dimension, and the
GrothendieckâRiemannâRoch theorem specializes to Hirzebruch's theorem.
6989:
6633:
6535:
11143:
11045:
9503:
8078:
65:. They contain detailed information about the original object but are notoriously difficult to compute; for example, an important outstanding problem is to compute the
5921:
1765:. Quillen was unable to prove the existence of the localization sequence in full generality. He was, however, able to prove its existence for a related theory called
6798:
7540:-construction gives the same results as the +-construction, but it applies in more general situations. Moreover, the definition is more direct in the sense that the
2777:
8045:
8157:
The following variant of this is also used: instead of finitely generated projective (= locally free) modules, take finitely generated modules. The resulting
7827:
7860:
7726:
7616:
7991:
7887:
7636:
7593:
7569:
4957:
in general for PIDs, thus providing one of the rare mathematical features of
Euclidean domains that do not generalize to all PIDs. An explicit PID such that SK
4210:
2749:-theory admitted a spectral sequence similar to the one conjectured by Quillen. Thomason proved around 1980 that after inverting the Bott element, algebraic
11217:
10825:
4078:
152:-groups were discovered first, in the sense that adequate descriptions of these groups in terms of other algebraic structures were found. For example, if
4795:
4276:
3947:
3693:
1747:-theory. Additionally, it was possible to prove that the earlier definitions of Swan and Gersten were equivalent to Quillen's under certain conditions.
11262:
11342:
11338:
7393:
1081:
of a
Chevalley group over a field and gave an explicit presentation of this group in terms of generators and relations. In the case of the group E
891:, where two trivial vector bundles on two halves of a space are glued along a common strip of the space. This gluing data is expressed using the
2514:
5205:
5136:) is trivial for any central simple algebra over a number field, but Platonov has given examples of algebras of degree prime squared for which S
3109:
3093:{\displaystyle {\tilde {K}}_{0}\left(A\right)=\bigcap \limits _{{\mathfrak {p}}{\text{ prime ideal of }}A}\mathrm {Ker} \dim _{\mathfrak {p}},}
10710:
2717:-theory, Ă©tale cohomology is highly computable, so Ă©tale Chern classes provided an effective tool for detecting the existence of elements in
10891:
2615:
of the ring of integers. Quillen therefore generalized
Lichtenbaum's conjecture, predicting the existence of a spectral sequence like the
7038:, after a few years during which several incompatible definitions were suggested. The object of the program was to find definitions of
6183:
10301:
Seiler, Wolfgang (1988), "λ-Rings and Adams Operations in Algebraic K-Theory", in Rapoport, M.; Schneider, P.; Schappacher, N. (eds.),
4578:{\displaystyle K_{1}(A,I)\rightarrow K_{1}(A)\rightarrow K_{1}(A/I)\rightarrow K_{0}(A,I)\rightarrow K_{0}(A)\rightarrow K_{0}(A/I)\ .}
2138:-cobordism theorem can be reinterpreted as the statement that the set of connected components of this space is the Whitehead group of
8682:
7162:
992:
394:
103:
6705:
2616:
366:
6309:
2058:-cobordism theorem because the simple connectedness hypotheses imply that the relevant Whitehead group is trivial. In fact the
1796:, modulo relations coming from exact sequences of coherent sheaves. In the categorical framework adopted by later authors, the
524:), and they imply that it is the universal way to assign invariants to vector bundles in a way compatible with exact sequences.
5662:
of universal type for a given root system. This construction yields the kernel of the Steinberg extension for the root systems
4696:
3588:
2768:-theory gave the correct groups, it was not known that these groups had all of the envisaged properties. For this, algebraic
1812:-theory of its category of coherent sheaves. Not only could Quillen prove the existence of a localization exact sequence for
11320:
10574:
10505:
10479:
10449:
10380:
10332:
10310:
10272:
10184:
10052:
10006:
9942:
9912:
9855:
9763:
9707:
9212:
7652:
8691:
7895:
1286:{\displaystyle F^{\times }\otimes _{\mathbf {Z} }F^{\times }/\langle x\otimes (1-x)\colon x\in F\setminus \{0,1\}\rangle .}
6440:
627:
and then compute the pushforward for Chow groups. The GrothendieckâRiemannâRoch theorem says that these are equal. When
266:, and the solvability of quadratic equations over completions. In contrast, finding the correct definition of the higher
5658:). Unstable second K-groups (in this context) are defined by taking the kernel of the universal central extension of the
10544:
10242:
8577:
6551:
2787:
was described in terms of complexes of sheaves on algebraic varieties. Thomason discovered that if one worked with in
17:
1604:
knows only about gluing vector bundles, not about the vector bundles themselves, it was impossible for it to describe
6913:{\displaystyle \partial ^{n}:k^{*}\times \cdots \times k^{*}\rightarrow H^{n}\left({k,\mu _{m}^{\otimes n}}\right)\ }
5640:{\displaystyle K_{2}(k)=k^{\times }\otimes _{\mathbf {Z} }k^{\times }/\langle a\otimes (1-a)\mid a\not =0,1\rangle .}
7144:-construction", the latter subsequently modified in different ways. The two constructions yield the same K-groups.
3242:
1848:-theory to topology was Whitehead's construction of Whitehead torsion. A closely related construction was found by
10887:"La stratification naturelle des espaces de fonctions differentiables reelles et le theoreme de la pseudo-isotopie"
3239:(this module is indeed free, as any finitely generated projective module over a local ring is free). This subgroup
1406:", and it neither appeared to generalize to all rings nor did it appear to be the correct definition of the higher
5410:{\displaystyle K_{2}(\mathbf {Q} )=(\mathbf {Z} /4)^{*}\times \prod _{p{\text{ odd prime}}}(\mathbf {Z} /p)^{*}\ }
4686:) (unit in the upper left corner), and hence is onto, and has the special Whitehead group as kernel, yielding the
2647:. In the case studied by Lichtenbaum, the spectral sequence would degenerate, yielding Lichtenbaum's conjecture.
10848:
10613:
8280:-groups have proved particularly difficult to compute except in a few isolated but interesting cases. (See also:
2398:
677:
11303:
Thomason, Robert W.; Trobaugh, Thomas (1990), "Higher Algebraic K-Theory of Schemes and of Derived Categories",
7770:
721:). Even as such definitions were developed, technical issues surrounding restriction and gluing usually forced
8614:-groups for smooth varieties over finite fields, and states that in this case the groups vanish up to torsion.
455:
7286:
1618:-theory under the name of Î-objects. Segal's approach is a homotopy analog of Grothendieck's construction of
10643:
10617:
10554:
10406:
10252:
9998:
8593:
7334:
6642:
3938:
2314:
2306:
1894:
have isomorphic interiors (in TOP, PL, or DIFF as appropriate), then the isomorphism between them defines an
698:
4220:
to be one which is the sum of an identity matrix and a single off-diagonal element (this is a subset of the
7099:
7007:
5425:
2880:-groups were discovered first, and given various ad hoc descriptions, which remain useful. Throughout, let
2040:-cobordism theorem, due independently to Mazur, Stallings, and Barden, explains the general situation: An
1067:-groups for certain categories and proved that his definitions yielded that same groups as those of Bass.
11504:
11499:
7729:
1614:
Inspired by conversations with Quillen, Segal soon introduced another approach to constructing algebraic
1078:
7735:
3377:
3325:
to a ring with unity obtaining by adjoining an identity element (0,1). There is a short exact sequence
2818:-theory to Hochschild homology. While the Dennis trace map seemed to be successful for calculations of
2336:
1777:-theory had been defined early in the development of the subject by Grothendieck. Grothendieck defined
10471:
10226:
10136:
9904:
6080:
5181:
5161:
4687:
3213:
3184:
2764:-theory on singular varieties still lacked adequate foundations. While it was believed that Quillen's
11257:, ÌColloq. Theorie des Groupes Algebriques, Gauthier-Villars, Paris, 1962, pp. 113â127. (French)
10165:
Algebraic K-theory, I: Higher K-theories (Proc. Conf., Battelle Memorial Inst., Seattle, Wash., 1972)
8243:
7996:
3505:
2917:
1410:-theory of fields. Much later, it was discovered by Nesterenko and Suslin and by Totaro that Milnor
1305:
6094:
2611:-groups of the ring of integers of the field. These special values were known to be related to the
1856:
dominated by a finite complex has a generalized Euler characteristic taking values in a quotient of
11183:, Proc. Intern. Congress Math., Vancouver, 1974, vol. I, Canad. Math. Soc., 1975, pp. 171â176.
8573:
6926:
3879:
of projective modules is again projective, and so tensor product induces a multiplication turning K
3410:
2600:. While progress has been made on Gersten's conjecture since then, the general case remains open.
2062:-cobordism theorem implies that there is a bijective correspondence between isomorphism classes of
321:
179:
10878:, Algebraic K-theory I, Lecture Notes in Math., vol. 341, Springer-Verlag, 1973, pp. 266â292.
10436:
Lluis-Puebla, Emilio; Loday, Jean-Louis; Gillet, Henri; Soulé, Christophe; Snaith, Victor (1992),
8558:) have recently been determined, but whether the latter groups are cyclic, and whether the groups
8197:
of regular rings is finite, i.e. any finitely generated module has a finite projective resolution
6953:
6597:
6499:
6036:{\displaystyle K_{2}(A)\rightarrow K_{2}(A/I)\rightarrow K_{1}(A,I)\rightarrow K_{1}(A)\cdots \ .}
2864:-theory or topological cyclic homology is possible, then many other "nearby" calculations follow.
10470:, Encyclopedia of Mathematics and its Applications, vol. 87 (corrected paperback ed.),
8607:
7835:
7548:-construction are functorial by definition. This fact is not automatic in the plus-construction.
668:
and Hirzebruch quickly transported Grothendieck's construction to topology and used it to define
135:
8050:
8708:
8276:-theory has provided deep insight into various aspects of algebraic geometry and topology, the
5062:
4966:
2623:-theory. Quillen's proposed spectral sequence would start from the Ă©tale cohomology of a ring
888:
390:
80:
6776:
2776:-theory with the foundations of intersection theory described in volume six of Grothendieck's
2011:
975:
could be fit together into an exact sequence similar to the relative homology exact sequence.
215:
is the ring of integers in a number field, this generalizes the classical construction of the
10761:
10672:
7830:
7015:
3439:
1320:
884:
779:(roughly "main conjecture"). The fact that triangulations were stable under subdivision led
279:
119:
10206:
Proceedings of the International Congress of Mathematicians (Vancouver, B. C., 1974), Vol. 1
2153:
and in particular is the obstruction to the uniqueness of a homotopy between a manifold and
11330:
11104:
10982:
10659:
10635:
10584:
10422:
10390:
10282:
10234:
10213:
10194:
10144:
10121:
10093:
10062:
10016:
9983:
9892:
9865:
9773:
9731:
9667:
9534:
8737:
8257:
8128:
8023:
7264:
6293:
4786:
4225:
3512:
2722:
892:
851:
784:
669:
661:
378:
370:
362:
333:
106:. Intersection theory is still a motivating force in the development of (higher) algebraic
10592:
10515:
10459:
10342:
10290:
10152:
10070:
10024:
9952:
9922:
9824:
9542:
9386:
8:
11218:
The Obstruction to Finding a Boundary for an Open Manifold of Dimension Greater than Five
11072:
8746:
8732:
8622:
8281:
8261:
7806:
5703:
5271:
5038:
For a non-commutative ring, the determinant cannot in general be defined, but the map GL(
4236:) generated by elementary matrices equals the commutator subgroup . Indeed, the group GL(
4213:
3542:
3384:
2811:
2310:
2264:
1677:-construction builds a category, not an abelian group, and unlike Segal's Î-objects, the
1626:
157:
84:
58:
11108:
10097:
7842:
7708:
7598:
6999:
2710:
2612:
445:, and so it is an abelian group. If the basis element corresponding to a vector bundle
11445:
11416:
11387:
11293:
11242:
11193:
10778:
10689:
10670:; Murthy, M.P. (1967). "Grothendieck groups and Picard groups of abelian group rings".
10496:, Modern BirkhÀuser Classics (Paperback reprint of the 1996 2nd ed.), Boston, MA:
9631:
9374:
8716:
8677:
7976:
7872:
7621:
7578:
7554:
7011:
6542:
5696:
2913:
2885:
2853:
2461:
1883:
788:
787:. A simple homotopy equivalence is defined in terms of adding simplices or cells to a
438:
259:
111:
10597:
10353:
10295:
4159:
11316:
11207:
11188:
10948:
10924:
10816:
10570:
10501:
10475:
10445:
10376:
10328:
10306:
10268:
10180:
10109:
10048:
10002:
9938:
9908:
9851:
9759:
9655:
9522:
9366:
9208:
8724:
8672:
8099:
7280:
7095:
7059:
7003:
5177:
4221:
4130:{\displaystyle \operatorname {GL} (A)=\operatorname {colim} \operatorname {GL} (n,A)}
3572:
3489:
2920:
2830:-groups. Bokstedt's version of the Dennis trace map was a transformation of spectra
2330:
1651:-theory which was to prove enormously successful. This new definition began with an
1519:
1454:
337:
88:
10724:
10705:
4860:{\displaystyle 1\to \operatorname {SL} (A)\to \operatorname {GL} (A)\to A^{*}\to 1.}
2814:. This was based around the existence of the Dennis trace map, a homomorphism from
1647:
In the spring of 1972, Quillen found another approach to the construction of higher
769:
11466:
11437:
11408:
11379:
11308:
11234:
11202:
11112:
11054:
11036:
11022:
10943:
10900:
10886:
10834:
10770:
10719:
10681:
10588:
10562:
10511:
10455:
10410:
10368:
10338:
10324:
10286:
10260:
10172:
10148:
10101:
10066:
10040:
10020:
9971:
9948:
9918:
9872:
9843:
9831:
9820:
9777:. See also Lecture IV and the references in (Friedlander & Weibel
9751:
9647:
9538:
9512:
9498:
9486:
9382:
9358:
8601:
8434:
8194:
5282:
5267:
5196:
4598:
4389:{\displaystyle K_{1}(A,I)=\ker \left({K_{1}(D(A,I))\rightarrow K_{1}(A)}\right)\ .}
4062:{\displaystyle K_{1}(A)=\operatorname {GL} (A)^{\mbox{ab}}=\operatorname {GL} (A)/}
3884:
3854:
3806:{\displaystyle K_{0}(A,I)=\ker \left({K_{0}(D(A,I))\rightarrow K_{0}(A)}\right)\ .}
2788:
2726:
1882:
is homotopy equivalent to a finite complex if and only if the invariant vanishes.
1686:
1450:
1158:
869:
780:
765:
313:
183:
62:
4897:) splits as the direct sum of the group of units and the special Whitehead group:
2296:
11326:
11312:
10978:
10607:
10580:
10558:
10548:
10538:
10523:
10441:
10418:
10386:
10364:
10278:
10256:
10246:
10230:
10209:
10190:
10168:
10140:
10117:
10058:
10036:
10012:
9979:
9934:
9888:
9861:
9839:
9769:
9747:
9663:
9530:
9204:
8179:
7276:
6300:
6157:
5692:
5659:
5448:
5028:
3450:
2845:
2803:
1717:(taking the loop space corrects the indexing). Quillen additionally proved his "
1485:
544:
329:
9501:(1969), "Sur les sous-groupes arithmétiques des groupes semi-simples déployés",
7514:) discrete, this definition doesn't differ in higher degrees and also holds for
3488:
An algebro-geometric variant of this construction is applied to the category of
1398:
Inspired in part by Matsumoto's theorem, Milnor made a definition of the higher
800:. The torsion of a homotopy equivalence takes values in a group now called the
11470:
11307:, Progr. Math., vol. 88, Boston, MA: BirkhĂ€user Boston, pp. 247â435,
11027:
11010:
10631:
10603:
10414:
10398:
10349:
10221:
Quillen, Daniel (1974), "Higher K-theory for categories with exact sequences",
10201:
10160:
9876:
9346:
8147:
7572:
7531:
7252:
6289:
5122:
4610:
4400:
3934:
3876:
2840:. This transformation factored through the fixed points of a circle action on
2468:
2044:-cobordism is a cylinder if and only if the Whitehead torsion of the inclusion
1714:
1656:
1652:
1446:
1297:
775:
665:
434:
295:
271:
263:
231:
131:
11399:
Whitehead, J.H.C. (1941). "On incidence matrices, nuclei and homotopy types".
10866:, Lecture Notes in Mathematics, vol. 657, SpringerâVerlag, pp. 40â84
10566:
10264:
10044:
9735:
9651:
2259:-theory, Waldhausen made significant technical advances in the foundations of
2160:. Consideration of these questions led Waldhausen to introduce his algebraic
1434:-theory. Additionally, Thomason discovered that there is no analog of Milnor
954:) is the subgroup of elementary matrices. They also provided a definition of
11493:
10964:
10749:
10651:
10223:
New developments in topology (Proc. Sympos. Algebraic Topology, Oxford, 1972)
10113:
9990:
9659:
9526:
9370:
8296:
The first and one of the most important calculations of the higher algebraic
7485:{\displaystyle K_{n}(R)=\pi _{n}(B\operatorname {GL} (R)^{+}\times K_{0}(R))}
3527:
3302:
2604:
2388:
1969:
1849:
1526:-theory since the work of Grothendieck, and so Quillen was led to define the
1522:. The Adams operations had been known to be related to Chern classes and to
854:, an invariant related to Whitehead torsion, to disprove the Hauptvermutung.
374:
50:
10969:
10497:
10372:
9819:, Mathematics Lecture Note Series, New York-Amsterdam: W.A. Benjamin, Inc.,
1518:), the map became a homotopy equivalence. This modification was called the
660:
also became defined for non-commutative rings, where it had applications to
53:. Geometric, algebraic, and arithmetic objects are assigned objects called
11172:-theory I, Lecture Notes in Math., vol. 341, Springer Verlag, 1973, 85â147.
10812:
9959:
9708:"ag.algebraic geometry - Quillen's motivation of higher algebraic K-theory"
8449:
8438:
8410:
8301:
8182:
7702:
7260:
5440:
5073:
4153:
4141:
3892:
3477:
3391:
2705:", an analog of topological Chern classes which took elements of algebraic
2582:{\displaystyle H^{p}(X,{\mathcal {K}}_{p})\cong \operatorname {CH} ^{p}(X)}
2074:
1792:
to be the free abelian group on isomorphism classes of coherent sheaves on
1571:
is connected, so Quillen's definition failed to give the correct value for
1091:) of elementary matrices, the universal central extension is now written St
792:
204:
123:
102:-group, but even this single group has plenty of applications, such as the
9847:
7098:
of spaces and the long exact sequence for relative K-groups arises as the
5256:{\displaystyle \varphi \colon \operatorname {St} (A)\to \mathrm {GL} (A),}
3922:
provided this definition, which generalizes the group of units of a ring:
2697:-vector spaces, and he found an analog of the Bott element in topological
11068:
11006:
10128:
10077:
8223:
7698:
6538:
5651:
5166:
4785:
which is a quotient of the usual split short exact sequence defining the
3179:
3160:{\displaystyle \dim _{\mathfrak {p}}:K_{0}\left(A\right)\to \mathbf {Z} }
2795:-theory to derived categories, Thomason was able to prove that algebraic
2702:
2180:) which is defined so that it plays essentially the same role for higher
1914:
1301:
1106:
1060:
847:
345:
317:
216:
127:
46:
11073:"Differential topology from the point of view of simple homotopy theory"
11059:
11040:
9517:
8020:
moves the homotopy groups up one degree, hence the shift in degrees for
5031:. For Dedekind domains with all quotients by maximal ideals finite, SK
3500:-group of the category of locally free sheaves (or coherent sheaves) on
361:. In the mid-20th century, the RiemannâRoch theorem was generalized by
11449:
11420:
11391:
11246:
11116:
10904:
10839:
10820:
10782:
10733:
10701:
10693:
10667:
10176:
10105:
9975:
9903:, Cambridge Studies in Advanced Mathematics, vol. 101, Cambridge:
9808:
9755:
9378:
8618:
7283:. He originally found this idea while studying the group cohomology of
3919:
3417:
2325:-theory spectra would, to each open subset of a variety, associate the
2073:-cobordisms is their uniqueness. The natural notion of equivalence is
1710:
865:
839:
548:
536:
139:
115:
8444:(a finite extension of the rationals), then the algebraic K-groups of
1339:-theory were proposed. Swan and Gersten both produced definitions of
1070:
The next major development in the subject came with the definition of
603:. This gives two ways of determining an element in the Chow group of
11484:
11041:"Sur les sous-groupes aritmetiques des groupes semi-simples deployes"
10882:
7103:
4961:
is nonzero was given by Ischebeck in 1980 and by Grayson in 1981. If
2078:
1913:-theoretic way. This reinterpretation happened through the study of
1697:
but whose morphisms are defined in terms of short exact sequences in
11457:
Whitehead, J.H.C. (1939). "Simplicial spaces, nuclei and m-groups".
11441:
11412:
11383:
11238:
11157:, Proc. ICM Nice 1970, vol. 2, Gauthier-Villars, Paris, 1971, 47â52.
10774:
10685:
10440:, Lecture Notes in Mathematics, vol. 1491, Berlin, Heidelberg:
10354:"Algebraic K-theory of rings of integers in local and global fields"
9640:
Institut des Hautes Ătudes Scientifiques. Publications MathĂ©matiques
9362:
3888:
3170:
is the map sending every (class of a) finitely generated projective
118:. The subject also includes classical number-theoretic topics like
8700:
449:
is denoted , then for each short exact sequence of vector bundles:
42:
38:
9746:, Lecture Notes in Mathematics, vol. 1126, Berlin, New York:
6278:{\displaystyle K_{*}^{M}(k):=T^{*}(k^{\times })/(a\otimes (1-a)),}
1909:
Whitehead torsion was eventually reinterpreted in a more directly
1044:. By applying this description recursively, he produced negative
684:(satisfying some mild technical constraints) a sequence of groups
243:
is a field, it is exactly the group of units. For a number field
134:, as well as more modern concerns like the construction of higher
11370:
Wall, C. T. C. (1965). "Finiteness conditions for CW-complexes".
10967:; Wagoner, John (1973), "Pseudo-isotopies of compact manifolds",
7728:
are analogous to the definitions of morphisms in the category of
7140:
Quillen gave two constructions, the "plus-construction" and the "
6923:
satisfying the defining relations of the Milnor K-group. Hence
1968:
are homotopy equivalences (in the categories TOP, PL, or DIFF).
1874:
is the fundamental group of the space. This invariant is called
1835:
1335:
In the late 1960s and early 1970s, several definitions of higher
70:
4244:) was first defined and studied by Whitehead, and is called the
2799:-theory had all the expected properties of a cohomology theory.
2737:-theory. For varieties defined over the complex numbers, Ă©tale
2395:-groups, proved that on a regular surface, the cohomology group
1735:
and led to simpler proofs, but still did not yield any negative
278:-groups of algebraic varieties were not known until the work of
8300:-groups of a ring were made by Quillen himself for the case of
7235:{\displaystyle K_{n}(R)=\pi _{n}(B\operatorname {GL} (R)^{+}),}
5907:
There is also an extension of the exact sequence for relative K
5121:) is trivial, and this may be extended to square-free degree.
3816:
where the map is induced by projection along the first factor.
2923:, regarded as a monoid under direct sum. Any ring homomorphism
2010:(in TOP, PL, or DIFF as appropriate). This theorem proved the
1560:-theory to the Adams operations allowed Quillen to compute the
1030:. Bass recognized that this theorem provided a description of
623:, or one can first apply the Chern character and Todd class of
10135:, Annals of Mathematics Studies, vol. 72, Princeton, NJ:
7006:) cohomology of the field and Milnor K-theory modulo 2 is the
1402:-groups of a field. He referred to his definition as "purely
1300:, which expresses the solvability of quadratic equations over
365:
to all algebraic varieties. In Hirzebruch's formulation, the
11266:, Proc. Sympos. Pure Math., vol. XVII, 1970, pp. 88â123.
10656:
On the Structure and Classification of Differential Manifolds
10208:, Montreal, Quebec: Canad. Math. Congress, pp. 171â176,
5421:
2207:. In particular, Waldhausen showed that there is a map from
1681:-construction works directly with short exact sequences. If
1430:-theory of a field is the highest weight-graded piece of the
619:-theory and then apply the Chern character and Todd class of
11364:
Algebraic and geometric topology (New Brunswick, N.J., 1983)
11255:
Generateurs, relations et revetements de groupes algebriques
10435:
7383: > 0 so one often defines the higher algebraic
6763:{\displaystyle \partial :k^{*}\rightarrow H^{1}(k,\mu _{m})}
2753:-theory with finite coefficients became isomorphic to Ă©tale
2627:
and, in high enough degrees and after completing at a prime
2293:-theory from the need to invoke analogs of exact sequences.
2285:
is for Segal) defined in terms of chains of cofibrations in
1816:-theory, he could prove that for a regular ring or variety,
1666:-construction has its roots in Grothendieck's definition of
10405:, Contemporary Mathematics, vol. 243, Providence, RI:
6437:
The tensor product on the tensor algebra induces a product
5650:
Matsumoto's original theorem is even more general: For any
4938:) vanishes, and the determinant map is an isomorphism from
11366:, Lecture Notes in Mathematics, vol. 1126 (1985), 318â419.
10167:, Lecture Notes in Math, vol. 341, Berlin, New York:
8420:
8417:) reproved Quillen's computation using different methods.
8260:. It applies to categories with cofibrations (also called
6371:{\displaystyle \left\{a\otimes (1-a):\ a\neq 0,1\right\}.}
5076:
provides a generalisation of the determinant giving a map
4870:
The determinant is split by including the group of units
3883:
into a commutative ring with the class as identity. The
1728:-theory agreed with each other. This yielded the correct
1705:-groups of the exact category are the homotopy groups of Ω
10323:, Chapman and Hall Mathematics Series, London, New York:
8264:). This is a more general concept than exact categories.
4775:{\displaystyle 1\to SK_{1}(A)\to K_{1}(A)\to A^{*}\to 1,}
3673:{\displaystyle D(A,I)=\{(x,y)\in A\times A:x-y\in I\}\ .}
933:) is the infinite general linear group (the union of all
653:). Upon replacing vector bundles by projective modules,
401:
be a smooth algebraic variety. To each vector bundle on
10303:
Beilinson's Conjectures on Special Values of L-Functions
11281:, 4e serie (1985), 437â552; erratum 22 (1989), 675â677.
9349:(1950). "On the commutator group of a simple algebra".
8083:
This definition coincides with the above definition of
4927:
is a Euclidean domain (e.g. a field, or the integers) S
2654:
suggested to Browder that there should be a variant of
2297:
Algebraic topology and algebraic geometry in algebraic
1391:
and are related to homotopy-invariant modifications of
1143:
further extended some of the exact sequences known for
8287:
8226:, with =Σ ± . This isomorphism extends to the higher
7687:{\displaystyle M'\longleftarrow N\longrightarrow M'',}
5478:
is finite for the ring of integers of a number field.
3990:
1356:-groups. Karoubi and Villamayor defined well-behaved
1157:, and it had striking applications to number theory.
10225:, London Math. Soc. Lecture Note Ser., vol. 11,
8208:, and a simple argument shows that the canonical map
8053:
8026:
7999:
7979:
7963:{\displaystyle K_{i}(P)=\pi _{i+1}(\mathrm {BQ} P,0)}
7898:
7875:
7845:
7809:
7773:
7738:
7711:
7655:
7624:
7601:
7581:
7557:
7396:
7337:
7289:
7165:
6956:
6929:
6817:
6779:
6708:
6645:
6600:
6554:
6502:
6443:
6312:
6186:
6097:
5924:
5714:
5529:
5309:
5208:
5007:. For a Dedekind domain, this is the case: indeed, K
4798:
4699:
4411:
4279:
4162:
4081:
3950:
3696:
3591:
3245:
3216:
3187:
3112:
3008:
2806:
discovered an entirely novel technique for computing
2701:-theory. Soule used this theory to construct "Ă©tale
2607:
of a number field could be expressed in terms of the
2517:
2401:
2339:
2069:
An obvious question associated with the existence of
1804:-theory of its category of vector bundles, while its
1371:
was sometimes a proper quotient of the BassâSchanuel
1185:
887:
of the space. All such vector bundles come from the
458:
37:
is a subject area in mathematics with connections to
10995:
Comptes Rendus de l'Académie des Sciences, Série A-B
9962:(1993), "The K-theory of finite fields, revisited",
9887:, World Sci. Publ., River Edge, NJ, pp. 1â119,
6489:{\displaystyle K_{m}\times K_{n}\rightarrow K_{m+n}}
5675: > 1) and, in the limit, stable second
2460:. Inspired by this, Gersten conjectured that for a
352:
determines subspaces of these vector spaces, and if
91:. In the modern language, Grothendieck defined only
11428:Whitehead, J.H.C. (1950). "Simple homotopy types".
11144:
Annales Scientifiques de l'Ăcole Normale SupĂ©rieure
11046:
Annales Scientifiques de l'Ăcole Normale SupĂ©rieure
9504:
Annales Scientifiques de l'Ăcole Normale SupĂ©rieure
8576:about the class groups of cyclotomic integers. See
7331:and noted some of his calculations were related to
6173:led Milnor to the following definition of "higher"
5292:
is zero for any finite field. The computation of K
3849:as a ring without identity. The independence from
2603:Lichtenbaum conjectured that special values of the
2381:-group of the total space. This is now called the
397:, his generalization of Hirzebruch's theorem. Let
389:-theory takes its name from a 1957 construction of
11225:Smale, S (1962). "On the structure of manifolds".
9830:
8583:
8072:
8039:
8012:
7985:
7962:
7881:
7854:
7821:
7791:
7756:
7720:
7686:
7630:
7610:
7587:
7563:
7484:
7368:
7323:
7234:
6983:
6942:
6912:
6804:-th roots of unity in some separable extension of
6792:
6762:
6683:
6627:
6586:
6529:
6488:
6389:⧠3 they differ in general. For example, we have
6370:
6277:
6132:
6035:
5883:
5639:
5409:
5255:
4859:
4774:
4577:
4388:
4204:
4129:
4061:
3805:
3672:
3278:
3231:
3202:
3159:
3092:
2581:
2440:
2356:
2081:proved that for simply connected smooth manifolds
1673:. Unlike Grothendieck's definition, however, the
1285:
982:-theory from this period culminated in Bass' book
555:. Additionally, he proved that a proper morphism
501:
11005:
10609:The K-book: an introduction to Algebraic K-theory
10525:The K-book: An introduction to algebraic K-theory
10403:The development of algebraic K-theory before 1980
10238:(relation of Q-construction to plus-construction)
9997:, Graduate Studies in Mathematics, vol. 67,
9871:
9791:
9778:
8598:non-commutative main conjecture of Iwasawa theory
6587:{\displaystyle a_{1}\otimes \cdots \otimes a_{n}}
6385:= 0,1,2 these coincide with those below, but for
2658:-theory with finite coefficients. He introduced
2066:-cobordisms and elements of the Whitehead group.
1414:-theory is actually a direct summand of the true
730:to be defined only for rings, not for varieties.
11491:
11302:
11286:Le principe de sciendage et l'inexistence d'une
10958:Classes de fasiceaux et theoreme de RiemannâRoch
10630:
8475:) modulo torsion. For example, for the integers
8146:-groups of (the exact category of) locally free
7271:for the size of the matrix tending to infinity,
7014:. The analogous statement for odd primes is the
4965:is a Dedekind domain whose quotient field is an
2508:contains a field, and using this he proved that
2321:-theory would provide an example. The sheaf of
2309:that it might be possible to create a theory of
2032:are not assumed to be simply connected, then an
270:-groups of rings was a difficult achievement of
11011:"K-theorie algebrique et K-theorie topologique"
7732:, where morphisms are given as correspondences
4588:
3571:and define the "double" to be a subring of the
3492:; it associates with a given algebraic variety
2778:Séminaire de Géométrie Algébrique du Bois Marie
2252:and whose homotopy fiber is a homology theory.
2110:-cobordism theorem is the classifying space of
1000:. This is a four-term exact sequence relating
274:, and many of the basic facts about the higher
10963:
10035:, Springer Monographs in Mathematics, Berlin:
9933:, Springer Monographs in Mathematics, Berlin:
8796:Whitehead 1939, Whitehead 1941, Whitehead 1950
8659:-groups of the category of finitely generated
4999:in GL. When this fails, one can ask whether K
3279:{\displaystyle {\tilde {K}}_{0}\left(A\right)}
2504:. Soon Quillen proved that this is true when
1578:. Additionally, it did not give any negative
1453:in topology, he had constructed maps from the
1319:) is essentially structured around the law of
10826:Bulletin de la Société Mathématique de France
10711:Bulletin of the American Mathematical Society
9901:Central simple algebras and Galois cohomology
9898:
9203:, Classics in mathematics, Berlin, New York:
5431:For non-Archimedean local fields, the group K
3416:Finitely generated projective modules over a
2988:is commutative, we can define a subgroup of
2391:, influenced by Gersten's work on sheaves of
10700:
7152:One possible definition of higher algebraic
6678:
6646:
5631:
5589:
3661:
3613:
3345:) to be the kernel of the corresponding map
2733:-theory for the Ă©tale topology called Ă©tale
1492:. This map is acyclic, and after modifying
1277:
1274:
1262:
1223:
676:-theory was one of the first examples of an
441:on isomorphism classes of vector bundles on
405:, Grothendieck associates an invariant, its
301:
79:-theory was discovered in the late 1950s by
11263:Nonabelian homological algebra and K-theory
10989:Karoubi, Max (1968). "Foncteurs derives et
10706:"The homotopy theory of projective modules"
10030:
9995:Introduction to Quadratic Forms over Fields
9931:Class field theory. From theory to practice
7993:. Note the classifying space of a groupoid
4969:(a finite extension of the rationals) then
3895:embeds as a subgroup of the group of units
2441:{\displaystyle H^{2}(X,{\mathcal {K}}_{2})}
961:of a homomorphism of rings and proved that
615:, one can first compute the pushforward in
10811:
10666:
10033:Reciprocity laws. From Euler to Eisenstein
9730:
7792:{\displaystyle X\leftarrow Z\rightarrow Y}
7618:is defined, objects of which are those of
6288:thus as graded parts of a quotient of the
5056:
5053:) is a generalisation of the determinant.
4222:elementary matrices used in linear algebra
3378:Grothendieck group § Further examples
764:for group rings was earlier introduced by
680:: It associates to each topological space
11456:
11427:
11398:
11206:
11058:
11035:
11026:
10947:
10838:
10796:Bokstedt, M., Hsiang, W. C., Madsen, I.,
10723:
10642:, Proc. Sympos. Pure Math., vol. 3,
10543:
10532:
10318:
10241:
9899:Gille, Philippe; Szamuely, TamĂĄs (2006),
9630:
9516:
9497:
9464:
9462:
7353:
7308:
7275:is the classifying space construction of
7018:, proved by Voevodsky, Rost, and others.
2953:) by mapping (the class of) a projective
2916:of the set of isomorphism classes of its
2848:. In the course of proving an algebraic
516:. These generators and relations define
502:{\displaystyle 0\to V'\to V\to V''\to 0,}
10624:
10487:
10163:(1973), "Higher algebraic K-theory. I",
9407:
9405:
9339:
9293:
9291:
9164:
9162:
8546:), and the orders of the finite groups K
8106:, this definition agrees with the above
7324:{\displaystyle GL_{n}(\mathbb {F} _{q})}
4621:) and thus descends to a map det :
3423:are free and so in this case once again
2333:converging from the sheaf cohomology of
2126:) is a space that classifies bundles of
2036:-cobordism need not be a cylinder. The
1948:whose boundary is the disjoint union of
178:and is closely related to the notion of
11305:The Grothendieck Festschrift Volume III
10988:
10922:
10876:-theory as generalized sheaf cohomology
10847:
10550:Algebraic K-theory and its applications
10248:Algebraic K-theory and its applications
10220:
10200:
10159:
9958:
9790:(Friedlander & Weibel
9673:
9432:
9332:
9330:
9198:
9176:
9174:
8414:
7697:where the first arrow is an admissible
7369:{\displaystyle K_{1}(\mathbb {F} _{q})}
7035:
6684:{\displaystyle \{a_{1},\ldots ,a_{n}\}}
5682:
5501:is divisible by 4, and otherwise zero.
4601:, one can define a determinant det: GL(
2650:The necessity of localizing at a prime
1693:is a category with the same objects as
1296:This relation is also satisfied by the
1161:'s 1968 thesis showed that for a field
1120:) to be the kernel of the homomorphism
369:, the theorem became a statement about
14:
11492:
11221:, Thesis, Princeton University (1965).
11090:
10650:
10602:
10539:Higher Algebraic K-Theory: an overview
10465:
10438:Higher algebraic K-theory: an overview
10397:
10348:
10300:
10127:
10076:
9691:
9682:
9600:
9566:
9557:
9554:Rosenberg (1994) Theorem 4.3.15, p.214
9548:
9471:
9459:
9441:
9423:
9414:
9393:
9230:
8617:Another fundamental conjecture due to
8098:is the category of finitely generated
7701:and the second arrow is an admissible
7646:âł are isomorphism classes of diagrams
7156:-theory of rings was given by Quillen
5504:
4970:
2844:, which suggested a relationship with
2760:Throughout the 1970s and early 1980s,
1844:The earliest application of algebraic
1593:, which was classically the source of
1449:'s. As part of Quillen's work on the
11224:
11186:
11067:
10960:, mimeographed notes, Princeton 1957.
10748:
10640:Vector bundles and homogeneous spaces
10468:An algebraic introduction to K-theory
10204:(1975), "Higher algebraic K-theory",
9615:
9606:
9575:
9450:
9402:
9309:
9300:
9288:
9279:
9270:
9261:
9239:
9221:
9183:
9159:
8479:, Borel proved that (modulo torsion)
8233:
7521:
7147:
6144:. The map is not always surjective.
5420:and remarked that the proof followed
5285:: this leads to Matsumoto's theorem.
2860:-theory, so that if a calculation in
2741:-theory is isomorphic to topological
1724:theorem" that his two definitions of
1629:whose homotopy groups are the higher
1422:-groups have a filtration called the
1418:-theory of the field. Specifically,
883:is defined using vector bundles on a
11369:
11189:"Categories and cohomology theories"
11080:Publications MathĂ©matiques de l'IHĂS
10892:Publications MathĂ©matiques de l'IHĂS
10881:
10732:
9928:
9807:
9584:
9345:
9327:
9318:
9285:Rosenberg (1994) Theorem 2.3.2, p.74
9171:
4270:is defined in terms of the "double"
3687:is defined in terms of the "double"
2271:he introduced a simplicial category
2085:of dimension at least 5, isotopy of
1976:-cobordism theorem asserted that if
1944:-dimensional manifold with boundary
1063:gave another definition of negative
10798:The cyclotomic trace and algebraic
10557:, vol. 147, Berlin, New York:
10255:, vol. 147, Berlin, New York:
9989:
8778:Grothendieck 1957, BorelâSerre 1958
8592:-groups are used in conjectures on
7030:The accepted definitions of higher
4991:can be interpreted as saying that K
3305:, we can extend the definition of K
3223:
3194:
3119:
3081:
3049:
3043:
2617:AtiyahâHirzebruch spectral sequence
24:
10521:
10429:
10321:Introduction to algebraic K-theory
10133:Introduction to algebraic K-theory
9258:Amer. J. Math., 72 (1950) pp. 1â57
8005:
7944:
7941:
7757:{\displaystyle Z\subset X\times Y}
7021:
6931:
6819:
6709:
6147:
5237:
5234:
4882:) into the general linear group GL
4152: + 1) as the upper left
3071:
3068:
3065:
2540:
2424:
2357:{\displaystyle {\mathcal {K}}_{n}}
2343:
2164:-theory of spaces. The algebraic
1852:in 1963. Wall found that a space
1505:) slightly to produce a new space
1445:-theory to be widely accepted was
1326:
512:Grothendieck imposed the relation
25:
11516:
11478:
9634:(2003), "Motivic cohomology with
9621:Gille & Szamuely (2006) p.108
9612:Gille & Szamuely (2006) p.184
8683:Fundamental theorem of algebraic
5102:) may be defined as the kernel.
3232:{\displaystyle M_{\mathfrak {p}}}
3203:{\displaystyle A_{\mathfrak {p}}}
2867:
2305:Quillen suggested to his student
2289:. This freed the foundations of
1259:
993:fundamental theorem of algebraic
857:The first adequate definition of
733:
395:GrothendieckâRiemannâRoch theorem
104:GrothendieckâRiemannâRoch theorem
9834:; Grayson, Daniel, eds. (2005),
9336:Gille & Szamuely (2006) p.48
9324:Gille & Szamuely (2006) p.47
5835:
5809:
5763:
5737:
5568:
5439:) is the direct sum of a finite
5382:
5338:
5324:
5011:is generated by the images of GL
3875:is a commutative ring, then the
3303:ring without an identity element
3153:
2448:is isomorphic to the Chow group
2267:, and for a Waldhausen category
2263:-theory. Waldhausen introduced
2054:vanishes. This generalizes the
1956:and for which the inclusions of
1662:." Like Segal's Î-objects, the
1488:acting on the classifying space
1202:
373:: The Euler characteristic of a
320:proved what is now known as the
10993:-theorie. Categories filtres".
10917:-theory and Hochschild homology
10791:Topological Hochschild homology
10725:10.1090/s0002-9904-1962-10826-x
10614:Graduate Studies in Mathematics
9784:
9724:
9700:
9624:
9593:
9491:
9480:
9248:
9192:
9156:DundasâGoodwillieâMcCarthy 2012
9150:
9141:
9132:
9123:
9114:
9105:
9096:
9087:
9078:
9069:
9060:
9051:
9042:
9033:
9024:
9015:
9006:
8997:
8988:
8979:
8970:
8961:
8952:
8943:
8934:
8925:
8916:
8907:
8898:
8889:
8880:
8871:
8862:
8853:
8844:
8625:) says that all of the groups
8584:Applications and open questions
8013:{\displaystyle B{\mathcal {G}}}
7379:This definition only holds for
5003:is generated by the image of GL
4995:is generated by the image of GL
4667:). This map splits via the map
3860:
2383:BrownâGersten spectral sequence
1441:The first definition of higher
1438:-theory for a general variety.
678:extraordinary cohomology theory
367:HirzebruchâRiemannâRoch theorem
110:-theory through its links with
11277:, Ann. Scient. Ec. Norm. Sup.
11131:, Princeton Univ. Press, 1971.
11095:-theory and Quadratic Forms".
10919:, unpublished preprint (1976).
10305:, Boston, MA: Academic Press,
10084:-theory and quadratic forms",
9736:"Algebraic K-theory of spaces"
8835:
8826:
8817:
8808:
8799:
8790:
8781:
8772:
8763:
8636:) are finitely generated when
8610:concerns the higher algebraic
8578:QuillenâLichtenbaum conjecture
8193:-theory coincide. Indeed, the
7957:
7937:
7915:
7909:
7783:
7777:
7670:
7664:
7479:
7476:
7470:
7448:
7441:
7429:
7413:
7407:
7363:
7348:
7318:
7303:
7226:
7217:
7210:
7198:
7182:
7176:
6978:
6972:
6860:
6757:
6738:
6725:
6622:
6616:
6524:
6518:
6467:
6336:
6324:
6269:
6266:
6254:
6245:
6237:
6224:
6208:
6202:
6133:{\displaystyle xyx^{-1}y^{-1}}
6021:
6015:
6002:
5999:
5987:
5974:
5971:
5957:
5944:
5941:
5935:
5900:runs over all prime ideals of
5872:
5856:
5840:
5800:
5784:
5768:
5728:
5610:
5598:
5546:
5540:
5395:
5378:
5351:
5334:
5328:
5320:
5300:) is complicated: Tate proved
5247:
5241:
5230:
5227:
5221:
5195:It can also be defined as the
5169:found the right definition of
4973:, corollary 16.3) shows that S
4851:
4838:
4835:
4829:
4820:
4817:
4811:
4802:
4763:
4750:
4747:
4741:
4728:
4725:
4719:
4703:
4566:
4552:
4539:
4536:
4530:
4517:
4514:
4502:
4489:
4486:
4472:
4459:
4456:
4450:
4437:
4434:
4422:
4372:
4366:
4353:
4350:
4347:
4335:
4329:
4302:
4290:
4255:
4199:
4196:
4190:
4178:
4172:
4163:
4124:
4112:
4094:
4088:
4056:
4053:
4047:
4035:
4029:
4020:
4012:
4006:
3986:
3979:
3967:
3961:
3789:
3783:
3770:
3767:
3764:
3752:
3746:
3719:
3707:
3628:
3616:
3607:
3595:
3552:
3253:
3149:
3016:
2576:
2570:
2551:
2528:
2435:
2412:
2003:is isomorphic to the cylinder
1936:-cobordant if there exists an
1542:). Not only did this recover
1244:
1232:
490:
479:
473:
462:
174:is isomorphic to the integers
13:
1:
11345:-theory of topological spaces
11091:Milnor, J (1970). "Algebraic
10821:"Le theoreme de RiemannâRoch"
10644:American Mathematical Society
10555:Graduate Texts in Mathematics
10407:American Mathematical Society
10253:Graduate Texts in Mathematics
9999:American Mathematical Society
9801:
8594:special values of L-functions
8267:
7829:, which is defined to be the
6943:{\displaystyle \partial ^{n}}
3939:infinite general linear group
2456:) of codimension 2 cycles on
1876:Wall's finiteness obstruction
409:. The set of all classes on
11313:10.1007/978-0-8176-4576-2_10
11275:-theory and Ă©tale cohomology
11208:10.1016/0040-9383(74)90022-6
11134:Nobile, A., Villamayor, O.,
10949:10.1016/0021-8693(71)90030-5
10793:. Preprint, Bielefeld, 1986.
9679:Rosenberg (1994) pp. 245â246
9276:Rosenberg (1994) 2.5.4, p.95
9267:Rosenberg (1994) 2.5.1, p.92
9236:Rosenberg (1994) 1.5.3, p.27
9227:Rosenberg (1994) 1.5.1, p.27
8692:Basic theorems in algebraic
8425:-groups of rings of integers
8272:While the Quillen algebraic
8161:-groups are usually written
7100:long exact homotopy sequence
6984:{\displaystyle K_{n}^{M}(k)}
6950:may be regarded as a map on
6628:{\displaystyle K_{n}^{M}(k)}
6530:{\displaystyle K_{*}^{M}(F)}
6059:. Given commuting matrices
5426:Law of Quadratic Reciprocity
4589:Commutative rings and fields
3383:(Projective) modules over a
2219:) which generalizes the map
1800:-theory of a variety is the
1079:universal central extensions
230:) is closely related to the
7:
10319:Silvester, John R. (1981),
10031:Lemmermeyer, Franz (2000),
9147:BokstedtâHsiangâMadsen 1993
8666:
6091:as images. The commutator
4644:), one can also define the
3371:
2729:then invented an analog of
2106:The proper context for the
1999:are simply connected, then
1469:) to the homotopy fiber of
783:to introduce the notion of
757:A group closely related to
27:Subject area in mathematics
10:
11521:
11290:-theorie de Milnor globale
11125:Introduction to Algebraic
11028:10.7146/math.scand.a-11024
10857:-theory with coefficients
10472:Cambridge University Press
10227:Cambridge University Press
10217:(Quillen's Q-construction)
10137:Princeton University Press
9905:Cambridge University Press
9120:Thomason and Trobaugh 1990
8534:The torsion subgroups of K
8435:ring of algebraic integers
8241:
8073:{\displaystyle \pi _{i+1}}
7529:
6155:
6046:
5162:Steinberg group (K-theory)
5159:
5019:in GL. The subgroup of SK
4688:split short exact sequence
3375:
3056: prime ideal of
2745:-theory. Moreover, Ă©tale
2255:In order to fully develop
1836:Applications of algebraic
1564:-groups of finite fields.
1534:as the homotopy groups of
1364:, but their equivalent of
1105:. In the spring of 1967,
573:determines a homomorphism
285:
11485:K theory preprint archive
11009:; Villamayor, O. (1971).
10956:Grothendieck, Alexander,
10567:10.1007/978-1-4612-4314-4
10466:Magurn, Bruce A. (2009),
10265:10.1007/978-1-4612-4314-4
10045:10.1007/978-3-662-12893-0
9881:An overview of algebraic
9652:10.1007/s10240-003-0010-6
9201:K-Theory: an Introduction
8596:and the formulation of a
8448:are finitely generated.
8316:is the finite field with
8244:Waldhausen S-construction
7973:with a fixed zero-object
7544:-groups, defined via the
6162:The above expression for
3545:real-valued functions on
3506:compact topological space
1077:. Steinberg studied the
1059:). In independent work,
699:EilenbergâSteenrod axioms
11471:10.1112/plms/s2-45.1.243
10870:Brown, K., Gersten, S.,
10086:Inventiones Mathematicae
9468:Lemmermeyer (2000) p.385
9021:Hatcher and Wagoner 1973
8756:
8640:is a finitely generated
8292:-groups of finite fields
8248:A third construction of
8127:. More generally, for a
7705:. Note the morphisms in
7503:) is path connected and
7279:, and the is Quillen's
6793:{\displaystyle \mu _{m}}
5512:states that for a field
2639:-adic completion of the
2118:is a CAT manifold, then
697:) which satisfy all the
607:from a vector bundle on
294:-theory was detailed by
11299:, no. 3, 1992, 571â588.
11150:, no. 3, 1968, 581â616.
10704:; Schanuel, S. (1962).
10373:10.1007/3-540-27855-9_5
9960:Jardine, John Frederick
9411:Lemmermeyer (2000) p.66
8895:KaroubiâVillamayor 1971
8600:and in construction of
8493:)/tors.=0 for positive
8452:used this to calculate
8429:Quillen proved that if
6548:The images of elements
6051:There is a pairing on K
5110:has prime degree then S
5057:Central simple algebras
4646:special Whitehead group
3288:reduced zeroth K-theory
1924:-dimensional manifolds
1824:-theory, and therefore
1382:-groups are now called
1308:was able to prove that
1026:, and the localization
344:form vector spaces. A
302:The Grothendieck group
11459:Proc. London Math. Soc
11187:Segal, Graeme (1974).
10759:of algebraic cycles".
10533:Pedagogical references
10415:10.1090/conm/243/03695
9929:Gras, Georges (2003),
9697:Rosenberg (1994) p.289
9688:Rosenberg (1994) p.246
9572:Rosenberg (1994) p.200
9477:Silvester (1981) p.228
9102:DwyerâFriedlander 1982
8922:NesterenkoâSuslin 1990
8886:NobileâVillamayor 1968
8787:AtiyahâHirzebruch 1961
8644:-algebra. (The groups
8572:) vanish depends upon
8256:-construction, due to
8252:-theory groups is the
8142:are defined to be the
8074:
8041:
8014:
7987:
7964:
7883:
7869:of the exact category
7856:
7823:
7800:
7793:
7758:
7722:
7688:
7632:
7612:
7589:
7565:
7486:
7370:
7325:
7236:
7094:) are functors into a
7034:-groups were given by
6985:
6944:
6914:
6794:
6764:
6685:
6629:
6588:
6531:
6490:
6372:
6279:
6134:
6037:
5885:
5641:
5424:'s first proof of the
5411:
5288:One can compute that K
5257:
5063:central simple algebra
4967:algebraic number field
4861:
4776:
4617:, which vanishes on E(
4579:
4390:
4228:states that the group
4206:
4148:), which embeds in GL(
4131:
4063:
3853:is an analogue of the
3807:
3674:
3280:
3233:
3204:
3161:
3094:
2852:-theory analog of the
2709:-theory to classes in
2583:
2442:
2358:
1769:-theory (or sometimes
1567:The classifying space
1287:
1022:, the polynomial ring
889:clutching construction
864:of a ring was made by
503:
393:which appeared in the
391:Alexander Grothendieck
379:characteristic classes
180:vector space dimension
138:and special values of
81:Alexander Grothendieck
11401:Annals of Mathematics
11372:Annals of Mathematics
10762:Annals of Mathematics
10673:Annals of Mathematics
10636:Hirzebruch, Friedrich
10625:Historical references
10488:Srinivas, V. (2008),
9848:10.1007/3-540-27855-9
9732:Waldhausen, Friedhelm
9315:Rosenberg (1994) p.78
9306:Rosenberg (1994) p.81
9297:Rosenberg (1994) p.75
9256:Simple homotopy types
9199:Karoubi, Max (2008),
9168:Rosenberg (1994) p.30
8712:-theory of a category
8574:Vandiver's conjecture
8398: − 1)
8262:Waldhausen categories
8075:
8042:
8040:{\displaystyle K_{i}}
8015:
7988:
7965:
7884:
7857:
7831:geometric realisation
7824:
7794:
7766:
7759:
7723:
7689:
7633:
7613:
7590:
7566:
7487:
7371:
7326:
7265:general linear groups
7237:
7016:Bloch-Kato conjecture
6998:The relation between
6986:
6945:
6915:
6800:denotes the group of
6795:
6765:
6686:
6630:
6589:
6532:
6491:
6373:
6280:
6135:
6038:
5886:
5642:
5412:
5258:
5150:
4862:
4777:
4580:
4391:
4207:
4132:
4064:
3909:
3808:
3675:
3281:
3234:
3205:
3162:
3095:
2981:a covariant functor.
2891:
2596:. This is known as
2584:
2443:
2359:
2265:Waldhausen categories
1757:-theory of a variety
1715:geometric realization
1321:quadratic reciprocity
1288:
1176:) was isomorphic to:
1037:entirely in terms of
662:group representations
504:
382:class is the degree.
371:Euler characteristics
334:meromorphic functions
312:In the 19th century,
120:quadratic reciprocity
11155:Cohomology of groups
10808:(3) (1993), 465â539.
10660:Cambridge University
10409:, pp. 211â238,
10367:, pp. 139â190,
10363:, Berlin, New York:
10361:Handbook of K-theory
10129:Milnor, John Willard
10078:Milnor, John Willard
9873:Friedlander, Eric M.
9838:, Berlin, New York:
9836:Handbook of K-Theory
9750:, pp. 318â419,
9218:, see Theorem I.6.18
8608:Parshin's conjecture
8051:
8024:
7997:
7977:
7896:
7873:
7843:
7807:
7771:
7736:
7709:
7653:
7622:
7599:
7579:
7555:
7394:
7335:
7287:
7163:
6954:
6927:
6815:
6777:
6706:
6643:
6598:
6552:
6500:
6441:
6310:
6294:multiplicative group
6184:
6095:
5922:
5712:
5683:Long exact sequences
5527:
5474:/2, and in general K
5307:
5206:
5035:is a torsion group.
4796:
4787:special linear group
4697:
4409:
4277:
4160:
4079:
3948:
3887:similarly induces a
3694:
3589:
3321:be the extension of
3243:
3214:
3185:
3110:
3006:
2713:. Unlike algebraic
2515:
2399:
2337:
1183:
893:general linear group
852:Reidemeister torsion
785:simple homotopy type
670:topological K-theory
569:to a smooth variety
456:
363:Friedrich Hirzebruch
322:RiemannâRoch theorem
57:-groups. These are
11215:Siebenmann, Larry,
11140:-theorie algebrique
11109:1970InMat...9..318M
11060:10.24033/asens.1174
10923:Gersten, S (1971).
10545:Rosenberg, Jonathan
10243:Rosenberg, Jonathan
10229:, pp. 95â103,
10171:, pp. 85â147,
10098:1970InMat...9..318M
10080:(1970), "Algebraic
9632:Voevodsky, Vladimir
9563:Milnor (1971) p.123
9518:10.24033/asens.1174
9447:Milnor (1971) p.175
9429:Milnor (1971) p.102
9420:Milnor (1971) p.101
8913:Milnor 1970, p. 319
8733:Redshift conjecture
8282:K-groups of a field
7889:is then defined as
7822:{\displaystyle BQP}
7638:and morphisms from
6971:
6901:
6808:. This extends to
6615:
6517:
6430:is nonzero for odd
6303:, generated by the
6201:
5704:long exact sequence
5520:-group is given by
5510:Matsumoto's theorem
5505:Matsumoto's theorem
5272:elementary matrices
4987:The vanishing of SK
4399:There is a natural
4214:commutator subgroup
3834:) is isomorphic to
3496:the Grothendieck's
3490:algebraic varieties
3434:) is isomorphic to
3405:) is isomorphic to
3178:to the rank of the
2812:Hochschild homology
2012:Poincaré conjecture
1898:-cobordism between
1840:-theory in topology
1761:and an open subset
1633:-groups (including
332:, then the sets of
89:algebraic varieties
85:intersection theory
11505:Algebraic geometry
11500:Algebraic K-theory
11117:10.1007/bf01425486
10905:10.1007/BF02684687
10840:10.24033/bsmf.1500
10817:Serre, Jean-Pierre
10632:Atiyah, Michael F.
10177:10.1007/BFb0067053
10106:10.1007/BF01425486
9976:10.1007/BF00961219
9877:Weibel, Charles W.
9756:10.1007/BFb0074449
9638:/2-coefficients",
9590:Milnor (1971) p.69
9581:Milnor (1971) p.63
9456:Milnor (1971) p.81
9254:J.H.C. Whitehead,
9245:Milnor (1971) p.15
9189:Milnor (1971) p.14
9048:BrownâGersten 1973
8805:BassâSchanuel 1962
8580:for more details.
8070:
8037:
8010:
7983:
7960:
7879:
7855:{\displaystyle QP}
7852:
7819:
7789:
7754:
7721:{\displaystyle QP}
7718:
7684:
7628:
7611:{\displaystyle QP}
7608:
7585:
7561:
7482:
7366:
7321:
7232:
7148:The +-construction
7060:classifying spaces
7012:Vladimir Voevodsky
6981:
6957:
6940:
6910:
6884:
6790:
6760:
6681:
6625:
6601:
6584:
6543:graded-commutative
6527:
6503:
6486:
6368:
6275:
6187:
6140:is an element of K
6130:
6033:
5881:
5697:field of fractions
5637:
5407:
5377:
5253:
5147:) is non-trivial.
5125:also showed that S
5027:may be studied by
4857:
4772:
4575:
4386:
4202:
4127:
4059:
3994:
3803:
3670:
3276:
3229:
3200:
3157:
3090:
3063:
2921:projective modules
2918:finitely generated
2914:Grothendieck group
2854:Novikov conjecture
2579:
2462:regular local ring
2438:
2354:
1884:Laurent Siebenmann
1773:′-theory).
1556:, the relation of
1455:classifying spaces
1304:. In particular,
1283:
872:. In topological
789:simplicial complex
642:) is now known as
499:
439:free abelian group
425:. By definition,
421:) from the German
338:differential forms
260:class field theory
203:is related to the
122:and embeddings of
112:motivic cohomology
18:Algebraic K theory
11360:-theory of spaces
11322:978-0-8176-3487-2
11284:Thomason, R. W.,
11269:Thomason, R. W.,
11177:Higher algebraic
11175:Quillen, Daniel,
11162:Higher algebraic
11160:Quillen, Daniel,
11153:Quillen, Daniel,
11037:Matsumoto, Hideya
10913:Higher algebraic
10804:. Invent. Math.,
10802:-theory of spaces
10616:, vol. 145,
10576:978-0-387-94248-3
10507:978-0-8176-4736-0
10481:978-0-521-10658-0
10451:978-3-540-55007-5
10382:978-3-540-23019-9
10334:978-0-412-22700-4
10312:978-0-12-581120-0
10274:978-0-387-94248-3
10186:978-3-540-06434-3
10054:978-3-540-66957-9
10008:978-0-8218-1095-8
9944:978-3-540-44133-5
9914:978-0-521-86103-8
9857:978-3-540-30436-4
9832:Friedlander, Eric
9765:978-3-540-15235-4
9744:-theory of spaces
9507:, 4 (in French),
9499:Matsumoto, Hideya
9438:Gras (2003) p.205
9214:978-3-540-79889-7
9180:Milnor (1971) p.5
8720:-group of a field
8673:Additive K-theory
8602:higher regulators
7986:{\displaystyle 0}
7882:{\displaystyle P}
7862:. Then, the i-th
7631:{\displaystyle P}
7588:{\displaystyle P}
7564:{\displaystyle P}
7281:plus construction
7096:homotopy category
7008:Milnor conjecture
6909:
6344:
6029:
5880:
5481:We further have K
5406:
5374:
5363:
5283:Steinberg symbols
5281:is determined by
5061:In the case of a
4571:
4382:
4226:Whitehead's lemma
4218:elementary matrix
3993:
3799:
3666:
3573:Cartesian product
3309:as follows. Let
3256:
3057:
3042:
3019:
2810:-theory based on
2331:spectral sequence
2114:-cobordisms. If
1520:plus construction
1426:, and the Milnor
1424:weight filtration
1101:) and called the
114:and specifically
16:(Redirected from
11512:
11474:
11453:
11424:
11407:(5): 1197â1239.
11395:
11354:Waldhausen, F.,
11336:Waldhausen, F.,
11333:
11250:
11212:
11210:
11120:
11087:
11077:
11064:
11062:
11032:
11030:
11002:
10985:
10953:
10951:
10925:"On the functor
10908:
10867:
10849:Browder, William
10844:
10842:
10786:
10745:
10729:
10727:
10697:
10663:
10647:
10620:
10595:
10528:
10518:
10484:
10462:
10425:
10394:(survey article)
10393:
10358:
10345:
10325:Chapman and Hall
10315:
10293:
10237:
10216:
10197:
10156:(lower K-groups)
10155:
10124:
10073:
10027:
9986:
9955:
9925:
9895:
9868:
9827:
9795:
9788:
9782:
9776:
9728:
9722:
9721:
9719:
9718:
9704:
9698:
9695:
9689:
9686:
9680:
9677:
9671:
9670:
9628:
9622:
9619:
9613:
9610:
9604:
9603:), cf. Lemma 1.8
9597:
9591:
9588:
9582:
9579:
9573:
9570:
9564:
9561:
9555:
9552:
9546:
9545:
9520:
9495:
9489:
9487:Hideya Matsumoto
9484:
9478:
9475:
9469:
9466:
9457:
9454:
9448:
9445:
9439:
9436:
9430:
9427:
9421:
9418:
9412:
9409:
9400:
9399:Lam (2005) p.139
9397:
9391:
9390:
9343:
9337:
9334:
9325:
9322:
9316:
9313:
9307:
9304:
9298:
9295:
9286:
9283:
9277:
9274:
9268:
9265:
9259:
9252:
9246:
9243:
9237:
9234:
9228:
9225:
9219:
9217:
9196:
9190:
9187:
9181:
9178:
9169:
9166:
9157:
9154:
9148:
9145:
9139:
9136:
9130:
9127:
9121:
9118:
9112:
9109:
9103:
9100:
9094:
9091:
9085:
9082:
9076:
9073:
9067:
9064:
9058:
9055:
9049:
9046:
9040:
9037:
9031:
9028:
9022:
9019:
9013:
9010:
9004:
9001:
8995:
8992:
8986:
8983:
8977:
8974:
8968:
8965:
8959:
8956:
8950:
8947:
8941:
8938:
8932:
8929:
8923:
8920:
8914:
8911:
8905:
8902:
8896:
8893:
8887:
8884:
8878:
8875:
8869:
8866:
8860:
8857:
8851:
8848:
8842:
8839:
8833:
8830:
8824:
8823:BassâMurthy 1967
8821:
8815:
8812:
8806:
8803:
8797:
8794:
8788:
8785:
8779:
8776:
8770:
8767:
8728:-theory spectrum
8623:Bass' conjecture
8437:in an algebraic
8411:Rick Jardine
8320:elements, then:
8195:global dimension
8148:coherent sheaves
8079:
8077:
8076:
8071:
8069:
8068:
8046:
8044:
8043:
8038:
8036:
8035:
8019:
8017:
8016:
8011:
8009:
8008:
7992:
7990:
7989:
7984:
7969:
7967:
7966:
7961:
7947:
7936:
7935:
7908:
7907:
7888:
7886:
7885:
7880:
7861:
7859:
7858:
7853:
7828:
7826:
7825:
7820:
7798:
7796:
7795:
7790:
7763:
7761:
7760:
7755:
7727:
7725:
7724:
7719:
7693:
7691:
7690:
7685:
7680:
7663:
7637:
7635:
7634:
7629:
7617:
7615:
7614:
7609:
7594:
7592:
7591:
7586:
7575:; associated to
7570:
7568:
7567:
7562:
7518: = 0.
7491:
7489:
7488:
7483:
7469:
7468:
7456:
7455:
7428:
7427:
7406:
7405:
7375:
7373:
7372:
7367:
7362:
7361:
7356:
7347:
7346:
7330:
7328:
7327:
7322:
7317:
7316:
7311:
7302:
7301:
7241:
7239:
7238:
7233:
7225:
7224:
7197:
7196:
7175:
7174:
6990:
6988:
6987:
6982:
6970:
6965:
6949:
6947:
6946:
6941:
6939:
6938:
6919:
6917:
6916:
6911:
6907:
6906:
6902:
6900:
6892:
6872:
6871:
6859:
6858:
6840:
6839:
6827:
6826:
6799:
6797:
6796:
6791:
6789:
6788:
6769:
6767:
6766:
6761:
6756:
6755:
6737:
6736:
6724:
6723:
6690:
6688:
6687:
6682:
6677:
6676:
6658:
6657:
6634:
6632:
6631:
6626:
6614:
6609:
6593:
6591:
6590:
6585:
6583:
6582:
6564:
6563:
6536:
6534:
6533:
6528:
6516:
6511:
6495:
6493:
6492:
6487:
6485:
6484:
6466:
6465:
6453:
6452:
6402:
6401:
6377:
6375:
6374:
6369:
6364:
6360:
6342:
6284:
6282:
6281:
6276:
6244:
6236:
6235:
6223:
6222:
6200:
6195:
6139:
6137:
6136:
6131:
6129:
6128:
6116:
6115:
6071:, take elements
6055:with values in K
6042:
6040:
6039:
6034:
6027:
6014:
6013:
5986:
5985:
5967:
5956:
5955:
5934:
5933:
5890:
5888:
5887:
5882:
5878:
5868:
5867:
5852:
5851:
5839:
5838:
5832:
5824:
5823:
5814:
5813:
5812:
5796:
5795:
5780:
5779:
5767:
5766:
5760:
5752:
5751:
5742:
5741:
5740:
5724:
5723:
5702:then there is a
5646:
5644:
5643:
5638:
5588:
5583:
5582:
5573:
5572:
5571:
5561:
5560:
5539:
5538:
5416:
5414:
5413:
5408:
5404:
5403:
5402:
5390:
5385:
5376:
5375:
5372:
5359:
5358:
5346:
5341:
5327:
5319:
5318:
5270:of the group of
5268:Schur multiplier
5262:
5260:
5259:
5254:
5240:
5029:Mennicke symbols
4866:
4864:
4863:
4858:
4850:
4849:
4781:
4779:
4778:
4773:
4762:
4761:
4740:
4739:
4718:
4717:
4599:commutative ring
4584:
4582:
4581:
4576:
4569:
4562:
4551:
4550:
4529:
4528:
4501:
4500:
4482:
4471:
4470:
4449:
4448:
4421:
4420:
4395:
4393:
4392:
4387:
4380:
4379:
4375:
4365:
4364:
4328:
4327:
4289:
4288:
4268:relative K-group
4211:
4209:
4208:
4205:{\displaystyle }
4203:
4136:
4134:
4133:
4128:
4068:
4066:
4065:
4060:
4019:
3996:
3995:
3991:
3960:
3959:
3885:exterior product
3855:Excision theorem
3812:
3810:
3809:
3804:
3797:
3796:
3792:
3782:
3781:
3745:
3744:
3706:
3705:
3685:relative K-group
3679:
3677:
3676:
3671:
3664:
3286:is known as the
3285:
3283:
3282:
3277:
3275:
3264:
3263:
3258:
3257:
3249:
3238:
3236:
3235:
3230:
3228:
3227:
3226:
3209:
3207:
3206:
3201:
3199:
3198:
3197:
3166:
3164:
3163:
3158:
3156:
3148:
3137:
3136:
3124:
3123:
3122:
3099:
3097:
3096:
3091:
3086:
3085:
3084:
3074:
3062:
3058:
3055:
3053:
3052:
3038:
3027:
3026:
3021:
3020:
3012:
2839:
2789:derived category
2727:Eric Friedlander
2723:William G. Dwyer
2711:Ă©tale cohomology
2693:
2682:
2653:
2638:
2630:
2613:Ă©tale cohomology
2588:
2586:
2585:
2580:
2566:
2565:
2550:
2549:
2544:
2543:
2527:
2526:
2447:
2445:
2444:
2439:
2434:
2433:
2428:
2427:
2411:
2410:
2363:
2361:
2360:
2355:
2353:
2352:
2347:
2346:
2251:
2215:) to a space Wh(
2159:
2053:
2020:
2009:
1987:is compact, and
1982:
1943:
1820:-theory equaled
1788:) for a variety
1723:
1687:abelian category
1582:-groups. Since
1475:
1451:Adams conjecture
1360:-groups for all
1292:
1290:
1289:
1284:
1222:
1217:
1216:
1207:
1206:
1205:
1195:
1194:
1159:Hideya Matsumoto
1135:
924:
870:Stephen Schanuel
838:is the integral
781:J.H.C. Whitehead
766:J.H.C. Whitehead
611:: Starting from
598:
568:
543:coming from the
515:
508:
506:
505:
500:
489:
472:
336:and meromorphic
316:and his student
314:Bernhard Riemann
258:) is related to
238:
202:
184:commutative ring
173:
83:in his study of
63:abstract algebra
61:in the sense of
21:
11520:
11519:
11515:
11514:
11513:
11511:
11510:
11509:
11490:
11489:
11481:
11442:10.2307/2372133
11413:10.2307/1970465
11384:10.2307/1970382
11323:
11260:Swan, Richard,
11253:Steinberg, R.,
11239:10.2307/2372978
11075:
10931:
10911:Dennis, R. K.,
10775:10.2307/1970902
10758:
10686:10.2307/1970360
10646:, pp. 7â38
10627:
10604:Weibel, Charles
10577:
10559:Springer-Verlag
10535:
10508:
10482:
10452:
10442:Springer-Verlag
10432:
10430:Further reading
10399:Weibel, Charles
10383:
10365:Springer-Verlag
10356:
10350:Weibel, Charles
10335:
10313:
10275:
10257:Springer-Verlag
10202:Quillen, Daniel
10187:
10169:Springer-Verlag
10161:Quillen, Daniel
10055:
10037:Springer-Verlag
10009:
9945:
9935:Springer-Verlag
9915:
9858:
9840:Springer-Verlag
9804:
9799:
9798:
9789:
9785:
9766:
9748:Springer-Verlag
9729:
9725:
9716:
9714:
9706:
9705:
9701:
9696:
9692:
9687:
9683:
9678:
9674:
9629:
9625:
9620:
9616:
9611:
9607:
9598:
9594:
9589:
9585:
9580:
9576:
9571:
9567:
9562:
9558:
9553:
9549:
9496:
9492:
9485:
9481:
9476:
9472:
9467:
9460:
9455:
9451:
9446:
9442:
9437:
9433:
9428:
9424:
9419:
9415:
9410:
9403:
9398:
9394:
9363:10.2307/2372036
9347:Wang, Shianghaw
9344:
9340:
9335:
9328:
9323:
9319:
9314:
9310:
9305:
9301:
9296:
9289:
9284:
9280:
9275:
9271:
9266:
9262:
9253:
9249:
9244:
9240:
9235:
9231:
9226:
9222:
9215:
9205:Springer-Verlag
9197:
9193:
9188:
9184:
9179:
9172:
9167:
9160:
9155:
9151:
9146:
9142:
9137:
9133:
9128:
9124:
9119:
9115:
9110:
9106:
9101:
9097:
9092:
9088:
9083:
9079:
9074:
9070:
9065:
9061:
9056:
9052:
9047:
9043:
9039:Waldhausen 1985
9038:
9034:
9030:Waldhausen 1978
9029:
9025:
9020:
9016:
9011:
9007:
9002:
8998:
8993:
8989:
8984:
8980:
8976:Siebenmann 1965
8975:
8971:
8966:
8962:
8957:
8953:
8948:
8944:
8939:
8935:
8930:
8926:
8921:
8917:
8912:
8908:
8903:
8899:
8894:
8890:
8885:
8881:
8876:
8872:
8867:
8863:
8858:
8854:
8849:
8845:
8840:
8836:
8831:
8827:
8822:
8818:
8813:
8809:
8804:
8800:
8795:
8791:
8786:
8782:
8777:
8773:
8768:
8764:
8759:
8678:Bloch's formula
8669:
8649:
8630:
8586:
8567:
8553:
8541:
8517:
8488:
8470:
8460:
8427:
8406: â„ 1.
8389:
8380:
8363:
8354:
8338:
8329:
8315:
8294:
8270:
8246:
8240:
8221:
8214:
8203:
8169:
8118:
8089:
8058:
8054:
8052:
8049:
8048:
8031:
8027:
8025:
8022:
8021:
8004:
8003:
7998:
7995:
7994:
7978:
7975:
7974:
7940:
7925:
7921:
7903:
7899:
7897:
7894:
7893:
7874:
7871:
7870:
7844:
7841:
7840:
7808:
7805:
7804:
7772:
7769:
7768:
7737:
7734:
7733:
7710:
7707:
7706:
7673:
7656:
7654:
7651:
7650:
7623:
7620:
7619:
7600:
7597:
7596:
7595:a new category
7580:
7577:
7576:
7556:
7553:
7552:
7534:
7528:
7509:
7464:
7460:
7451:
7447:
7423:
7419:
7401:
7397:
7395:
7392:
7391:
7357:
7352:
7351:
7342:
7338:
7336:
7333:
7332:
7312:
7307:
7306:
7297:
7293:
7288:
7285:
7284:
7277:homotopy theory
7250:
7220:
7216:
7192:
7188:
7170:
7166:
7164:
7161:
7160:
7150:
7028:
6966:
6961:
6955:
6952:
6951:
6934:
6930:
6928:
6925:
6924:
6893:
6888:
6877:
6873:
6867:
6863:
6854:
6850:
6835:
6831:
6822:
6818:
6816:
6813:
6812:
6784:
6780:
6778:
6775:
6774:
6751:
6747:
6732:
6728:
6719:
6715:
6707:
6704:
6703:
6699:there is a map
6691:. For integer
6672:
6668:
6653:
6649:
6644:
6641:
6640:
6610:
6605:
6599:
6596:
6595:
6578:
6574:
6559:
6555:
6553:
6550:
6549:
6512:
6507:
6501:
6498:
6497:
6474:
6470:
6461:
6457:
6448:
6444:
6442:
6439:
6438:
6428:
6422:
6410:
6400:
6395:
6394:
6393:
6317:
6313:
6311:
6308:
6307:
6301:two-sided ideal
6240:
6231:
6227:
6218:
6214:
6196:
6191:
6185:
6182:
6181:
6168:
6160:
6158:Milnor K-theory
6154:
6143:
6121:
6117:
6108:
6104:
6096:
6093:
6092:
6081:Steinberg group
6058:
6054:
6049:
6009:
6005:
5981:
5977:
5963:
5951:
5947:
5929:
5925:
5923:
5920:
5919:
5914:
5910:
5863:
5859:
5847:
5843:
5834:
5833:
5828:
5819:
5815:
5808:
5807:
5803:
5791:
5787:
5775:
5771:
5762:
5761:
5756:
5747:
5743:
5736:
5735:
5731:
5719:
5715:
5713:
5710:
5709:
5693:Dedekind domain
5685:
5670:
5660:Chevalley group
5584:
5578:
5574:
5567:
5566:
5562:
5556:
5552:
5534:
5530:
5528:
5525:
5524:
5507:
5484:
5477:
5465:
5454:
5449:divisible group
5434:
5398:
5394:
5386:
5381:
5373: odd prime
5371:
5367:
5354:
5350:
5342:
5337:
5323:
5314:
5310:
5308:
5305:
5304:
5295:
5291:
5280:
5233:
5207:
5204:
5203:
5182:Steinberg group
5175:
5164:
5158:
5156:
5142:
5131:
5116:
5106:states that if
5097:
5082:
5059:
5048:
5034:
5026:
5023:generated by SL
5022:
5018:
5014:
5010:
5006:
5002:
4998:
4994:
4990:
4979:
4960:
4944:
4933:
4915:
4903:
4892:
4877:
4845:
4841:
4797:
4794:
4793:
4757:
4753:
4735:
4731:
4713:
4709:
4698:
4695:
4694:
4681:
4654:
4627:
4591:
4558:
4546:
4542:
4524:
4520:
4496:
4492:
4478:
4466:
4462:
4444:
4440:
4416:
4412:
4410:
4407:
4406:
4360:
4356:
4323:
4319:
4318:
4314:
4284:
4280:
4278:
4275:
4274:
4264:
4262:
4246:Whitehead group
4161:
4158:
4157:
4080:
4077:
4076:
4015:
3989:
3985:
3955:
3951:
3949:
3946:
3945:
3928:
3917:
3915:
3901:
3891:structure. The
3882:
3869:
3866:
3840:
3825:
3777:
3773:
3740:
3736:
3735:
3731:
3701:
3697:
3695:
3692:
3691:
3590:
3587:
3586:
3567:be an ideal of
3561:
3559:
3541:of the ring of
3539:
3534:coincides with
3459:
3451:Dedekind domain
3429:
3400:
3380:
3374:
3359:
3351:
3340:
3337:and we define K
3308:
3265:
3259:
3248:
3247:
3246:
3244:
3241:
3240:
3222:
3221:
3217:
3215:
3212:
3211:
3193:
3192:
3188:
3186:
3183:
3182:
3152:
3138:
3132:
3128:
3118:
3117:
3113:
3111:
3108:
3107:
3080:
3079:
3075:
3064:
3054:
3048:
3047:
3046:
3028:
3022:
3011:
3010:
3009:
3007:
3004:
3003:
2994:
2980:
2970:
2948:
2937:
2907:
2899:
2897:
2874:
2846:cyclic homology
2831:
2804:R. Keith Dennis
2786:
2691:
2680:
2670:
2662:-theory groups
2651:
2636:
2628:
2619:in topological
2598:Bloch's formula
2561:
2557:
2545:
2539:
2538:
2537:
2522:
2518:
2516:
2513:
2512:
2495:
2487:) injects into
2482:
2429:
2423:
2422:
2421:
2406:
2402:
2400:
2397:
2396:
2372:
2364:, the sheaf of
2348:
2342:
2341:
2340:
2338:
2335:
2334:
2303:
2277:
2245:
2234:
2226:
2220:
2198:
2190:
2154:
2144:
2130:-cobordisms on
2095:
2045:
2015:
2004:
1977:
1937:
1862:
1842:
1808:-theory is the
1783:
1734:
1718:
1672:
1639:
1624:
1610:
1599:
1588:
1577:
1555:
1548:
1517:
1504:
1486:Adams operation
1470:
1468:
1390:
1377:
1370:
1347:
1333:
1314:
1218:
1212:
1208:
1201:
1200:
1196:
1190:
1186:
1184:
1181:
1180:
1171:
1156:
1149:
1142:
1121:
1115:
1103:Steinberg group
1096:
1086:
1076:
1054:
1043:
1036:
1017:
1006:
974:
967:
960:
941:
907:
901:
882:
863:
823:
802:Whitehead group
763:
755:
753:
746:
739:
729:
716:
707:
692:
672:. Topological
659:
648:
580:
574:
556:
545:Chern character
513:
482:
465:
457:
454:
453:
385:The subject of
330:Riemann surface
310:
308:
290:The history of
288:
280:Robert Thomason
253:
234:
225:
196:
190:
167:
161:
132:complex numbers
97:
69:-groups of the
28:
23:
22:
15:
12:
11:
5:
11518:
11508:
11507:
11502:
11488:
11487:
11480:
11479:External links
11477:
11476:
11475:
11454:
11425:
11396:
11367:
11352:
11334:
11321:
11300:
11282:
11267:
11258:
11251:
11233:(3): 387â399.
11222:
11213:
11201:(3): 293â312.
11184:
11173:
11158:
11151:
11132:
11121:
11103:(4): 318â344.
11088:
11065:
11033:
11003:
10986:
10965:Hatcher, Allen
10961:
10954:
10942:(2): 212â237.
10929:
10920:
10909:
10879:
10868:
10845:
10809:
10794:
10789:Bokstedt, M.,
10787:
10769:(2): 349â379.
10756:
10750:Bloch, Spencer
10746:
10730:
10718:(4): 425â428.
10698:
10664:
10652:Barden, Dennis
10648:
10626:
10623:
10622:
10621:
10600:
10575:
10541:
10534:
10531:
10530:
10529:
10519:
10506:
10485:
10480:
10463:
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10428:
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10426:
10395:
10381:
10346:
10333:
10316:
10311:
10298:
10273:
10239:
10218:
10198:
10185:
10157:
10125:
10092:(4): 318â344,
10074:
10053:
10028:
10007:
9991:Lam, Tsit-Yuen
9987:
9970:(6): 579â595,
9956:
9943:
9926:
9913:
9896:
9869:
9856:
9828:
9803:
9800:
9797:
9796:
9783:
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9690:
9681:
9672:
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9547:
9490:
9479:
9470:
9458:
9449:
9440:
9431:
9422:
9413:
9401:
9392:
9357:(2): 323â334.
9338:
9326:
9317:
9308:
9299:
9287:
9278:
9269:
9260:
9247:
9238:
9229:
9220:
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9191:
9182:
9170:
9158:
9149:
9140:
9131:
9122:
9113:
9104:
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9086:
9077:
9068:
9059:
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9041:
9032:
9023:
9014:
9005:
8996:
8987:
8978:
8969:
8960:
8951:
8942:
8933:
8924:
8915:
8906:
8897:
8888:
8879:
8870:
8861:
8859:Matsumoto 1969
8852:
8843:
8841:Steinberg 1962
8834:
8825:
8816:
8807:
8798:
8789:
8780:
8771:
8761:
8760:
8758:
8755:
8754:
8753:
8744:
8735:
8730:
8722:
8714:
8706:
8698:
8689:
8680:
8675:
8668:
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8628:
8585:
8582:
8562:
8547:
8535:
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8531:
8511:
8506:
8486:
8466:
8456:
8426:
8419:
8408:
8407:
8385:
8374:
8369:
8359:
8349:
8344:
8334:
8327:
8311:
8293:
8286:
8269:
8266:
8242:Main article:
8239:
8232:
8230:-groups, too.
8219:
8212:
8201:
8165:
8114:
8110:definition of
8087:
8067:
8064:
8061:
8057:
8034:
8030:
8007:
8002:
7982:
7971:
7970:
7959:
7956:
7953:
7950:
7946:
7943:
7939:
7934:
7931:
7928:
7924:
7920:
7917:
7914:
7911:
7906:
7902:
7878:
7851:
7848:
7818:
7815:
7812:
7788:
7785:
7782:
7779:
7776:
7753:
7750:
7747:
7744:
7741:
7717:
7714:
7695:
7694:
7683:
7679:
7676:
7672:
7669:
7666:
7662:
7659:
7627:
7607:
7604:
7584:
7573:exact category
7560:
7532:Q-construction
7530:Main article:
7527:
7520:
7507:
7493:
7492:
7481:
7478:
7475:
7472:
7467:
7463:
7459:
7454:
7450:
7446:
7443:
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7434:
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7426:
7422:
7418:
7415:
7412:
7409:
7404:
7400:
7365:
7360:
7355:
7350:
7345:
7341:
7320:
7315:
7310:
7305:
7300:
7296:
7292:
7253:homotopy group
7246:
7243:
7242:
7231:
7228:
7223:
7219:
7215:
7212:
7209:
7206:
7203:
7200:
7195:
7191:
7187:
7184:
7181:
7178:
7173:
7169:
7149:
7146:
7125:) â
7117:) â
7058:) in terms of
7036:Quillen (1973)
7027:
7020:
6980:
6977:
6974:
6969:
6964:
6960:
6937:
6933:
6921:
6920:
6905:
6899:
6896:
6891:
6887:
6883:
6880:
6876:
6870:
6866:
6862:
6857:
6853:
6849:
6846:
6843:
6838:
6834:
6830:
6825:
6821:
6787:
6783:
6771:
6770:
6759:
6754:
6750:
6746:
6743:
6740:
6735:
6731:
6727:
6722:
6718:
6714:
6711:
6695:invertible in
6680:
6675:
6671:
6667:
6664:
6661:
6656:
6652:
6648:
6624:
6621:
6618:
6613:
6608:
6604:
6581:
6577:
6573:
6570:
6567:
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6483:
6480:
6477:
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6447:
6426:
6420:
6408:
6396:
6379:
6378:
6367:
6363:
6359:
6356:
6353:
6350:
6347:
6341:
6338:
6335:
6332:
6329:
6326:
6323:
6320:
6316:
6290:tensor algebra
6286:
6285:
6274:
6271:
6268:
6265:
6262:
6259:
6256:
6253:
6250:
6247:
6243:
6239:
6234:
6230:
6226:
6221:
6217:
6213:
6210:
6207:
6204:
6199:
6194:
6190:
6166:
6156:Main article:
6153:
6146:
6141:
6127:
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6120:
6114:
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6107:
6103:
6100:
6056:
6052:
6048:
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6043:
6032:
6026:
6023:
6020:
6017:
6012:
6008:
6004:
6001:
5998:
5995:
5992:
5989:
5984:
5980:
5976:
5973:
5970:
5966:
5962:
5959:
5954:
5950:
5946:
5943:
5940:
5937:
5932:
5928:
5912:
5908:
5892:
5891:
5877:
5874:
5871:
5866:
5862:
5858:
5855:
5850:
5846:
5842:
5837:
5831:
5827:
5822:
5818:
5811:
5806:
5802:
5799:
5794:
5790:
5786:
5783:
5778:
5774:
5770:
5765:
5759:
5755:
5750:
5746:
5739:
5734:
5730:
5727:
5722:
5718:
5684:
5681:
5666:
5648:
5647:
5636:
5633:
5630:
5627:
5624:
5621:
5618:
5615:
5612:
5609:
5606:
5603:
5600:
5597:
5594:
5591:
5587:
5581:
5577:
5570:
5565:
5559:
5555:
5551:
5548:
5545:
5542:
5537:
5533:
5506:
5503:
5482:
5475:
5463:
5452:
5432:
5418:
5417:
5401:
5397:
5393:
5389:
5384:
5380:
5370:
5366:
5362:
5357:
5353:
5349:
5345:
5340:
5336:
5333:
5330:
5326:
5322:
5317:
5313:
5293:
5289:
5278:
5277:For a field, K
5264:
5263:
5252:
5249:
5246:
5243:
5239:
5236:
5232:
5229:
5226:
5223:
5220:
5217:
5214:
5211:
5173:
5157:
5154:
5149:
5140:
5129:
5114:
5104:Wang's theorem
5095:
5080:
5058:
5055:
5046:
5032:
5024:
5020:
5016:
5012:
5008:
5004:
5000:
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4992:
4988:
4977:
4958:
4942:
4931:
4913:
4901:
4890:
4875:
4868:
4867:
4856:
4853:
4848:
4844:
4840:
4837:
4834:
4831:
4828:
4825:
4822:
4819:
4816:
4813:
4810:
4807:
4804:
4801:
4783:
4782:
4771:
4768:
4765:
4760:
4756:
4752:
4749:
4746:
4743:
4738:
4734:
4730:
4727:
4724:
4721:
4716:
4712:
4708:
4705:
4702:
4679:
4652:
4625:
4611:group of units
4590:
4587:
4586:
4585:
4574:
4568:
4565:
4561:
4557:
4554:
4549:
4545:
4541:
4538:
4535:
4532:
4527:
4523:
4519:
4516:
4513:
4510:
4507:
4504:
4499:
4495:
4491:
4488:
4485:
4481:
4477:
4474:
4469:
4465:
4461:
4458:
4455:
4452:
4447:
4443:
4439:
4436:
4433:
4430:
4427:
4424:
4419:
4415:
4401:exact sequence
4397:
4396:
4385:
4378:
4374:
4371:
4368:
4363:
4359:
4355:
4352:
4349:
4346:
4343:
4340:
4337:
4334:
4331:
4326:
4322:
4317:
4313:
4310:
4307:
4304:
4301:
4298:
4295:
4292:
4287:
4283:
4263:
4260:
4254:
4201:
4198:
4195:
4192:
4189:
4186:
4183:
4180:
4177:
4174:
4171:
4168:
4165:
4138:
4137:
4126:
4123:
4120:
4117:
4114:
4111:
4108:
4105:
4102:
4099:
4096:
4093:
4090:
4087:
4084:
4070:
4069:
4058:
4055:
4052:
4049:
4046:
4043:
4040:
4037:
4034:
4031:
4028:
4025:
4022:
4018:
4014:
4011:
4008:
4005:
4002:
3999:
3988:
3984:
3981:
3978:
3975:
3972:
3969:
3966:
3963:
3958:
3954:
3935:abelianization
3926:
3916:
3913:
3908:
3899:
3880:
3877:tensor product
3868:
3864:
3859:
3838:
3823:
3814:
3813:
3802:
3795:
3791:
3788:
3785:
3780:
3776:
3772:
3769:
3766:
3763:
3760:
3757:
3754:
3751:
3748:
3743:
3739:
3734:
3730:
3727:
3724:
3721:
3718:
3715:
3712:
3709:
3704:
3700:
3681:
3680:
3669:
3663:
3660:
3657:
3654:
3651:
3648:
3645:
3642:
3639:
3636:
3633:
3630:
3627:
3624:
3621:
3618:
3615:
3612:
3609:
3606:
3603:
3600:
3597:
3594:
3560:
3557:
3551:
3537:
3528:vector bundles
3486:
3485:
3457:
3443:
3427:
3414:
3398:
3373:
3370:
3357:
3349:
3338:
3306:
3274:
3271:
3268:
3262:
3255:
3252:
3225:
3220:
3196:
3191:
3168:
3167:
3155:
3151:
3147:
3144:
3141:
3135:
3131:
3127:
3121:
3116:
3101:
3100:
3089:
3083:
3078:
3073:
3070:
3067:
3061:
3051:
3045:
3041:
3037:
3034:
3031:
3025:
3018:
3015:
2992:
2978:
2966:
2946:
2935:
2905:
2898:
2895:
2890:
2873:
2866:
2784:
2666:
2635:, abut to the
2631:invertible in
2590:
2589:
2578:
2575:
2572:
2569:
2564:
2560:
2556:
2553:
2548:
2542:
2536:
2533:
2530:
2525:
2521:
2491:
2478:
2469:fraction field
2437:
2432:
2426:
2420:
2417:
2414:
2409:
2405:
2368:
2351:
2345:
2302:
2295:
2275:
2243:
2232:
2224:
2196:
2188:
2142:
2093:
1860:
1841:
1834:
1781:
1732:
1670:
1653:exact category
1637:
1622:
1608:
1597:
1586:
1575:
1553:
1546:
1513:
1500:
1464:
1447:Daniel Quillen
1386:
1375:
1368:
1343:
1332:
1325:
1312:
1298:Hilbert symbol
1294:
1293:
1282:
1279:
1276:
1273:
1270:
1267:
1264:
1261:
1258:
1255:
1252:
1249:
1246:
1243:
1240:
1237:
1234:
1231:
1228:
1225:
1221:
1215:
1211:
1204:
1199:
1193:
1189:
1169:
1154:
1147:
1140:
1113:
1092:
1082:
1074:
1052:
1041:
1034:
1015:
1004:
972:
965:
958:
937:
899:
880:
861:
821:
776:Hauptvermutung
770:Henri Poincaré
761:
754:
751:
744:
737:
732:
725:
712:
705:
688:
657:
646:
578:
510:
509:
498:
495:
492:
488:
485:
481:
478:
475:
471:
468:
464:
461:
309:
306:
300:
296:Charles Weibel
287:
284:
272:Daniel Quillen
264:Hilbert symbol
251:
232:group of units
223:
194:
165:
95:
26:
9:
6:
4:
3:
2:
11517:
11506:
11503:
11501:
11498:
11497:
11495:
11486:
11483:
11482:
11472:
11468:
11464:
11460:
11455:
11451:
11447:
11443:
11439:
11435:
11431:
11430:Amer. J. Math
11426:
11422:
11418:
11414:
11410:
11406:
11402:
11397:
11393:
11389:
11385:
11381:
11377:
11373:
11368:
11365:
11361:
11357:
11353:
11350:
11347:
11346:
11341:
11340:
11335:
11332:
11328:
11324:
11318:
11314:
11310:
11306:
11301:
11298:
11295:
11291:
11287:
11283:
11280:
11276:
11272:
11268:
11265:
11264:
11259:
11256:
11252:
11248:
11244:
11240:
11236:
11232:
11228:
11227:Amer. J. Math
11223:
11220:
11219:
11214:
11209:
11204:
11200:
11196:
11195:
11190:
11185:
11182:
11178:
11174:
11171:
11167:
11163:
11159:
11156:
11152:
11149:
11145:
11141:
11137:
11133:
11130:
11126:
11122:
11118:
11114:
11110:
11106:
11102:
11098:
11094:
11089:
11085:
11081:
11074:
11070:
11066:
11061:
11056:
11052:
11048:
11047:
11042:
11038:
11034:
11029:
11024:
11020:
11016:
11012:
11008:
11004:
11000:
10996:
10992:
10987:
10984:
10980:
10976:
10972:
10971:
10966:
10962:
10959:
10955:
10950:
10945:
10941:
10937:
10933:
10928:
10921:
10918:
10914:
10910:
10906:
10902:
10898:
10894:
10893:
10888:
10884:
10880:
10877:
10873:
10869:
10865:
10862:
10860:
10854:
10850:
10846:
10841:
10836:
10832:
10828:
10827:
10822:
10818:
10814:
10813:Borel, Armand
10810:
10807:
10803:
10799:
10795:
10792:
10788:
10784:
10780:
10776:
10772:
10768:
10764:
10763:
10755:
10751:
10747:
10743:
10739:
10735:
10731:
10726:
10721:
10717:
10713:
10712:
10707:
10703:
10699:
10695:
10691:
10687:
10683:
10679:
10675:
10674:
10669:
10665:
10661:
10657:
10653:
10649:
10645:
10641:
10637:
10633:
10629:
10628:
10619:
10615:
10611:
10610:
10605:
10601:
10599:
10594:
10590:
10586:
10582:
10578:
10572:
10568:
10564:
10560:
10556:
10552:
10551:
10546:
10542:
10540:
10537:
10536:
10527:
10526:
10520:
10517:
10513:
10509:
10503:
10499:
10495:
10491:
10486:
10483:
10477:
10473:
10469:
10464:
10461:
10457:
10453:
10447:
10443:
10439:
10434:
10433:
10424:
10420:
10416:
10412:
10408:
10404:
10400:
10396:
10392:
10388:
10384:
10378:
10374:
10370:
10366:
10362:
10355:
10351:
10347:
10344:
10340:
10336:
10330:
10326:
10322:
10317:
10314:
10308:
10304:
10299:
10297:
10292:
10288:
10284:
10280:
10276:
10270:
10266:
10262:
10258:
10254:
10250:
10249:
10244:
10240:
10236:
10232:
10228:
10224:
10219:
10215:
10211:
10207:
10203:
10199:
10196:
10192:
10188:
10182:
10178:
10174:
10170:
10166:
10162:
10158:
10154:
10150:
10146:
10142:
10138:
10134:
10130:
10126:
10123:
10119:
10115:
10111:
10107:
10103:
10099:
10095:
10091:
10087:
10083:
10079:
10075:
10072:
10068:
10064:
10060:
10056:
10050:
10046:
10042:
10038:
10034:
10029:
10026:
10022:
10018:
10014:
10010:
10004:
10000:
9996:
9992:
9988:
9985:
9981:
9977:
9973:
9969:
9965:
9961:
9957:
9954:
9950:
9946:
9940:
9936:
9932:
9927:
9924:
9920:
9916:
9910:
9906:
9902:
9897:
9894:
9890:
9886:
9882:
9878:
9874:
9870:
9867:
9863:
9859:
9853:
9849:
9845:
9841:
9837:
9833:
9829:
9826:
9822:
9818:
9814:
9810:
9806:
9805:
9794:), Lecture VI
9793:
9787:
9780:
9775:
9771:
9767:
9761:
9757:
9753:
9749:
9745:
9741:
9737:
9733:
9727:
9713:
9709:
9703:
9694:
9685:
9676:
9669:
9665:
9661:
9657:
9653:
9649:
9646:(1): 59â104,
9645:
9641:
9637:
9633:
9627:
9618:
9609:
9602:
9599:(Weibel
9596:
9587:
9578:
9569:
9560:
9551:
9544:
9540:
9536:
9532:
9528:
9524:
9519:
9514:
9510:
9506:
9505:
9500:
9494:
9488:
9483:
9474:
9465:
9463:
9453:
9444:
9435:
9426:
9417:
9408:
9406:
9396:
9388:
9384:
9380:
9376:
9372:
9368:
9364:
9360:
9356:
9352:
9348:
9342:
9333:
9331:
9321:
9312:
9303:
9294:
9292:
9282:
9273:
9264:
9257:
9251:
9242:
9233:
9224:
9216:
9210:
9206:
9202:
9195:
9186:
9177:
9175:
9165:
9163:
9153:
9144:
9138:Bokstedt 1986
9135:
9126:
9117:
9111:Thomason 1985
9108:
9099:
9090:
9081:
9072:
9063:
9054:
9045:
9036:
9027:
9018:
9009:
9000:
8991:
8982:
8973:
8964:
8955:
8946:
8940:Thomason 1992
8937:
8928:
8919:
8910:
8901:
8892:
8883:
8874:
8865:
8856:
8847:
8838:
8829:
8820:
8811:
8802:
8793:
8784:
8775:
8766:
8762:
8752:
8750:
8745:
8743:
8741:
8736:
8734:
8731:
8729:
8727:
8723:
8721:
8719:
8715:
8713:
8711:
8707:
8705:
8703:
8699:
8697:
8695:
8690:
8688:
8686:
8681:
8679:
8676:
8674:
8671:
8670:
8664:
8662:
8658:
8654:
8650:
8643:
8639:
8635:
8631:
8624:
8620:
8615:
8613:
8609:
8605:
8603:
8599:
8595:
8591:
8581:
8579:
8575:
8571:
8566:
8561:
8557:
8551:
8545:
8539:
8529:
8526:for positive
8525:
8521:
8515:
8510:
8507:
8504:
8500:
8496:
8492:
8485:
8482:
8481:
8480:
8478:
8474:
8469:
8464:
8459:
8455:
8451:
8447:
8443:
8440:
8436:
8432:
8424:
8418:
8416:
8412:
8405:
8401:
8397:
8393:
8388:
8384:
8378:
8373:
8370:
8367:
8362:
8358:
8353:
8348:
8345:
8342:
8337:
8333:
8326:
8323:
8322:
8321:
8319:
8314:
8310:
8305:
8303:
8302:finite fields
8299:
8291:
8285:
8283:
8279:
8275:
8265:
8263:
8259:
8255:
8251:
8245:
8238:-construction
8237:
8231:
8229:
8225:
8218:
8211:
8207:
8200:
8196:
8192:
8188:
8184:
8181:
8177:
8173:
8168:
8164:
8160:
8155:
8153:
8149:
8145:
8141:
8137:
8134:, the higher
8133:
8130:
8126:
8122:
8117:
8113:
8109:
8105:
8103:
8097:
8093:
8086:
8081:
8065:
8062:
8059:
8055:
8032:
8028:
8000:
7980:
7954:
7951:
7948:
7932:
7929:
7926:
7922:
7918:
7912:
7904:
7900:
7892:
7891:
7890:
7876:
7868:
7866:
7849:
7846:
7838:
7837:
7832:
7816:
7813:
7810:
7799:
7786:
7780:
7774:
7765:
7751:
7748:
7745:
7742:
7739:
7731:
7715:
7712:
7704:
7700:
7681:
7677:
7674:
7667:
7660:
7657:
7649:
7648:
7647:
7645:
7641:
7625:
7605:
7602:
7582:
7574:
7558:
7549:
7547:
7543:
7539:
7533:
7526:-construction
7525:
7519:
7517:
7513:
7506:
7502:
7498:
7473:
7465:
7461:
7457:
7452:
7444:
7438:
7435:
7432:
7424:
7420:
7416:
7410:
7402:
7398:
7390:
7389:
7388:
7386:
7382:
7377:
7358:
7343:
7339:
7313:
7298:
7294:
7290:
7282:
7278:
7274:
7270:
7266:
7262:
7258:
7254:
7249:
7229:
7221:
7213:
7207:
7204:
7201:
7193:
7189:
7185:
7179:
7171:
7167:
7159:
7158:
7157:
7155:
7145:
7143:
7138:
7136:
7132:
7128:
7124:
7120:
7116:
7112:
7108:
7105:
7101:
7097:
7093:
7089:
7085:
7081:
7077:
7073:
7069:
7065:
7061:
7057:
7053:
7049:
7045:
7041:
7037:
7033:
7025:
7019:
7017:
7013:
7009:
7005:
7001:
6996:
6994:
6993:Galois symbol
6991:, called the
6975:
6967:
6962:
6958:
6935:
6903:
6897:
6894:
6889:
6885:
6881:
6878:
6874:
6868:
6864:
6855:
6851:
6847:
6844:
6841:
6836:
6832:
6828:
6823:
6811:
6810:
6809:
6807:
6803:
6785:
6781:
6752:
6748:
6744:
6741:
6733:
6729:
6720:
6716:
6712:
6702:
6701:
6700:
6698:
6694:
6673:
6669:
6665:
6662:
6659:
6654:
6650:
6638:
6619:
6611:
6606:
6602:
6579:
6575:
6571:
6568:
6565:
6560:
6556:
6546:
6544:
6540:
6521:
6513:
6508:
6504:
6481:
6478:
6475:
6471:
6462:
6458:
6454:
6449:
6445:
6435:
6434:(see below).
6433:
6429:
6425:
6416:
6412:
6407:
6399:
6392:
6388:
6384:
6365:
6361:
6357:
6354:
6351:
6348:
6345:
6339:
6333:
6330:
6327:
6321:
6318:
6314:
6306:
6305:
6304:
6302:
6298:
6295:
6291:
6272:
6263:
6260:
6257:
6251:
6248:
6241:
6232:
6228:
6219:
6215:
6211:
6205:
6197:
6192:
6188:
6180:
6179:
6178:
6176:
6172:
6165:
6159:
6151:
6145:
6125:
6122:
6118:
6112:
6109:
6105:
6101:
6098:
6090:
6086:
6082:
6078:
6074:
6070:
6066:
6062:
6030:
6024:
6018:
6010:
6006:
5996:
5993:
5990:
5982:
5978:
5968:
5964:
5960:
5952:
5948:
5938:
5930:
5926:
5918:
5917:
5916:
5905:
5903:
5899:
5898:
5875:
5869:
5864:
5860:
5853:
5848:
5844:
5829:
5825:
5820:
5816:
5804:
5797:
5792:
5788:
5781:
5776:
5772:
5757:
5753:
5748:
5744:
5732:
5725:
5720:
5716:
5708:
5707:
5706:
5705:
5701:
5698:
5694:
5690:
5680:
5678:
5674:
5669:
5665:
5661:
5657:
5653:
5634:
5628:
5625:
5622:
5619:
5616:
5613:
5607:
5604:
5601:
5595:
5592:
5585:
5579:
5575:
5563:
5557:
5553:
5549:
5543:
5535:
5531:
5523:
5522:
5521:
5519:
5516:, the second
5515:
5511:
5502:
5500:
5496:
5492:
5488:
5479:
5473:
5469:
5460:
5458:
5450:
5447:, say, and a
5446:
5442:
5438:
5429:
5427:
5423:
5399:
5391:
5387:
5368:
5364:
5360:
5355:
5347:
5343:
5331:
5315:
5311:
5303:
5302:
5301:
5299:
5286:
5284:
5275:
5273:
5269:
5250:
5244:
5224:
5218:
5215:
5212:
5209:
5202:
5201:
5200:
5198:
5193:
5191:
5187:
5183:
5179:
5172:
5168:
5163:
5153:
5148:
5146:
5139:
5135:
5128:
5124:
5120:
5113:
5109:
5105:
5101:
5094:
5090:
5086:
5079:
5075:
5071:
5068:over a field
5067:
5064:
5054:
5052:
5045:
5041:
5036:
5030:
4985:
4983:
4976:
4972:
4968:
4964:
4956:
4952:
4948:
4941:
4937:
4930:
4926:
4921:
4919:
4911:
4907:
4900:
4896:
4889:
4885:
4881:
4873:
4854:
4846:
4842:
4832:
4826:
4823:
4814:
4808:
4805:
4799:
4792:
4791:
4790:
4788:
4769:
4766:
4758:
4754:
4744:
4736:
4732:
4722:
4714:
4710:
4706:
4700:
4693:
4692:
4691:
4689:
4685:
4678:
4674:
4670:
4666:
4662:
4659:) := SL(
4658:
4651:
4647:
4643:
4639:
4635:
4631:
4624:
4620:
4616:
4612:
4608:
4604:
4600:
4596:
4572:
4563:
4559:
4555:
4547:
4543:
4533:
4525:
4521:
4511:
4508:
4505:
4497:
4493:
4483:
4479:
4475:
4467:
4463:
4453:
4445:
4441:
4431:
4428:
4425:
4417:
4413:
4405:
4404:
4403:
4402:
4383:
4376:
4369:
4361:
4357:
4344:
4341:
4338:
4332:
4324:
4320:
4315:
4311:
4308:
4305:
4299:
4296:
4293:
4285:
4281:
4273:
4272:
4271:
4269:
4259:
4253:
4251:
4247:
4243:
4239:
4235:
4231:
4227:
4223:
4219:
4215:
4193:
4187:
4184:
4181:
4175:
4169:
4166:
4155:
4151:
4147:
4143:
4121:
4118:
4115:
4109:
4106:
4103:
4100:
4097:
4091:
4085:
4082:
4075:
4074:
4073:
4050:
4044:
4041:
4038:
4032:
4026:
4023:
4016:
4009:
4003:
4000:
3997:
3982:
3976:
3973:
3970:
3964:
3956:
3952:
3944:
3943:
3942:
3940:
3936:
3932:
3925:
3921:
3912:
3907:
3905:
3898:
3894:
3890:
3886:
3878:
3874:
3863:
3858:
3857:in homology.
3856:
3852:
3848:
3845:), regarding
3844:
3837:
3833:
3829:
3822:
3819:The relative
3817:
3800:
3793:
3786:
3778:
3774:
3761:
3758:
3755:
3749:
3741:
3737:
3732:
3728:
3725:
3722:
3716:
3713:
3710:
3702:
3698:
3690:
3689:
3688:
3686:
3667:
3658:
3655:
3652:
3649:
3646:
3643:
3640:
3637:
3634:
3631:
3625:
3622:
3619:
3610:
3604:
3601:
3598:
3592:
3585:
3584:
3583:
3581:
3577:
3574:
3570:
3566:
3556:
3550:
3548:
3544:
3540:
3533:
3529:
3525:
3521:
3518:
3516:
3510:
3507:
3503:
3499:
3495:
3491:
3483:
3479:
3475:
3471:
3467:
3463:
3456:
3452:
3448:
3444:
3441:
3437:
3433:
3426:
3422:
3419:
3415:
3412:
3408:
3404:
3397:
3393:
3392:vector spaces
3389:
3386:
3382:
3381:
3379:
3369:
3367:
3363:
3355:
3348:
3344:
3336:
3332:
3328:
3324:
3320:
3316:
3312:
3304:
3300:
3295:
3293:
3289:
3272:
3269:
3266:
3260:
3250:
3218:
3189:
3181:
3177:
3173:
3145:
3142:
3139:
3133:
3129:
3125:
3114:
3106:
3105:
3104:
3103:where :
3087:
3076:
3059:
3039:
3035:
3032:
3029:
3023:
3013:
3002:
3001:
3000:
2999:) as the set
2998:
2991:
2987:
2982:
2977:
2973:
2969:
2964:
2960:
2956:
2952:
2945:
2941:
2934:
2930:
2926:
2922:
2919:
2915:
2911:
2908:takes a ring
2904:
2894:
2889:
2887:
2883:
2879:
2871:
2865:
2863:
2859:
2855:
2851:
2847:
2843:
2838:
2834:
2829:
2825:
2821:
2817:
2813:
2809:
2805:
2800:
2798:
2794:
2790:
2783:
2779:
2775:
2771:
2767:
2763:
2758:
2756:
2752:
2748:
2744:
2740:
2736:
2732:
2728:
2724:
2720:
2716:
2712:
2708:
2704:
2703:Chern classes
2700:
2696:
2689:
2686:) which were
2685:
2678:
2674:
2669:
2665:
2661:
2657:
2648:
2646:
2642:
2634:
2626:
2622:
2618:
2614:
2610:
2606:
2605:zeta function
2601:
2599:
2595:
2573:
2567:
2562:
2558:
2554:
2546:
2534:
2531:
2523:
2519:
2511:
2510:
2509:
2507:
2503:
2499:
2494:
2490:
2486:
2481:
2477:
2473:
2470:
2466:
2463:
2459:
2455:
2451:
2430:
2418:
2415:
2407:
2403:
2394:
2390:
2389:Spencer Bloch
2386:
2384:
2380:
2376:
2371:
2367:
2349:
2332:
2328:
2324:
2320:
2316:
2312:
2308:
2307:Kenneth Brown
2300:
2294:
2292:
2288:
2284:
2280:
2274:
2270:
2266:
2262:
2258:
2253:
2249:
2242:
2238:
2230:
2223:
2218:
2214:
2210:
2206:
2202:
2194:
2187:
2183:
2179:
2175:
2171:
2167:
2163:
2157:
2152:
2148:
2141:
2137:
2133:
2129:
2125:
2121:
2117:
2113:
2109:
2104:
2102:
2099:
2092:
2088:
2084:
2080:
2076:
2072:
2067:
2065:
2061:
2057:
2052:
2048:
2043:
2039:
2035:
2031:
2027:
2022:
2018:
2013:
2007:
2002:
1998:
1994:
1990:
1986:
1980:
1975:
1971:
1970:Stephen Smale
1967:
1963:
1959:
1955:
1951:
1947:
1941:
1935:
1931:
1927:
1923:
1919:
1917:
1912:
1907:
1905:
1901:
1897:
1893:
1889:
1885:
1881:
1877:
1873:
1869:
1866:
1859:
1855:
1851:
1850:C. T. C. Wall
1847:
1839:
1833:
1831:
1827:
1823:
1819:
1815:
1811:
1807:
1803:
1799:
1795:
1791:
1787:
1780:
1776:
1772:
1768:
1764:
1760:
1756:
1752:
1748:
1746:
1740:
1738:
1731:
1727:
1722:
1716:
1712:
1708:
1704:
1700:
1696:
1692:
1688:
1684:
1680:
1676:
1669:
1665:
1661:
1660:-construction
1659:
1654:
1650:
1645:
1643:
1636:
1632:
1628:
1621:
1617:
1612:
1607:
1603:
1596:
1592:
1585:
1581:
1574:
1570:
1565:
1563:
1559:
1552:
1545:
1541:
1537:
1533:
1529:
1525:
1521:
1516:
1512:
1508:
1503:
1499:
1495:
1491:
1487:
1483:
1479:
1473:
1467:
1463:
1459:
1456:
1452:
1448:
1444:
1439:
1437:
1433:
1429:
1425:
1421:
1417:
1413:
1409:
1405:
1401:
1396:
1394:
1389:
1385:
1381:
1374:
1367:
1363:
1359:
1355:
1351:
1346:
1342:
1338:
1330:
1324:
1322:
1318:
1311:
1307:
1303:
1299:
1280:
1271:
1268:
1265:
1256:
1253:
1250:
1247:
1241:
1238:
1235:
1229:
1226:
1219:
1213:
1209:
1197:
1191:
1187:
1179:
1178:
1177:
1175:
1168:
1164:
1160:
1153:
1146:
1139:
1136:. The group
1133:
1129:
1125:
1119:
1112:
1108:
1104:
1100:
1095:
1090:
1085:
1080:
1073:
1068:
1066:
1062:
1058:
1051:
1047:
1040:
1033:
1029:
1025:
1021:
1014:
1010:
1003:
999:
998:
996:
989:
985:
981:
976:
971:
964:
957:
953:
949:
945:
940:
936:
932:
928:
922:
918:
914:
910:
905:
898:
894:
890:
886:
879:
875:
871:
867:
860:
855:
853:
849:
845:
841:
837:
834:
830:
827:
820:
815:
811:
807:
803:
799:
794:
790:
786:
782:
778:
777:
771:
767:
760:
750:
743:
736:
731:
728:
724:
720:
715:
711:
704:
700:
696:
691:
687:
683:
679:
675:
671:
667:
663:
656:
652:
645:
641:
637:
632:
630:
626:
622:
618:
614:
610:
606:
602:
596:
592:
588:
584:
577:
572:
567:
563:
559:
554:
550:
546:
542:
538:
534:
530:
525:
523:
519:
496:
493:
486:
483:
476:
469:
466:
459:
452:
451:
450:
448:
444:
440:
436:
432:
428:
424:
420:
416:
412:
408:
404:
400:
396:
392:
388:
383:
380:
376:
375:vector bundle
372:
368:
364:
360:
355:
351:
347:
343:
339:
335:
331:
327:
323:
319:
315:
305:
299:
297:
293:
283:
281:
277:
273:
269:
265:
261:
257:
250:
246:
242:
237:
233:
229:
222:
219:. The group
218:
214:
210:
206:
200:
193:
188:
185:
181:
177:
171:
164:
159:
155:
151:
146:
144:
142:
137:
133:
129:
125:
124:number fields
121:
117:
113:
109:
105:
101:
98:, the zeroth
94:
90:
86:
82:
78:
74:
72:
68:
64:
60:
56:
52:
51:number theory
48:
44:
40:
36:
34:
19:
11462:
11458:
11433:
11429:
11404:
11400:
11378:(1): 56â69.
11375:
11371:
11363:
11359:
11355:
11348:
11344:
11337:
11304:
11296:
11289:
11285:
11278:
11274:
11270:
11261:
11254:
11230:
11226:
11216:
11198:
11192:
11180:
11176:
11169:
11168:, Algebraic
11165:
11161:
11154:
11147:
11146:, 4e serie,
11139:
11135:
11128:
11124:
11123:Milnor, J.,
11100:
11097:Invent. Math
11096:
11092:
11083:
11079:
11069:Mazur, Barry
11050:
11044:
11018:
11014:
11007:Karoubi, Max
11001:: A328âA331.
10998:
10994:
10990:
10974:
10968:
10957:
10939:
10935:
10926:
10916:
10912:
10896:
10890:
10875:
10871:
10864:
10858:
10856:
10852:
10830:
10824:
10805:
10801:
10797:
10790:
10766:
10760:
10753:
10741:
10737:
10715:
10709:
10680:(1): 16â73.
10677:
10671:
10655:
10639:
10608:
10549:
10524:
10522:Weibel, C.,
10493:
10489:
10467:
10437:
10402:
10360:
10320:
10302:
10247:
10222:
10205:
10164:
10132:
10089:
10085:
10081:
10032:
9994:
9967:
9963:
9930:
9900:
9884:
9880:
9835:
9816:
9812:
9786:
9743:
9739:
9726:
9715:. Retrieved
9712:MathOverflow
9711:
9702:
9693:
9684:
9675:
9643:
9639:
9635:
9626:
9617:
9608:
9595:
9586:
9577:
9568:
9559:
9550:
9508:
9502:
9493:
9482:
9473:
9452:
9443:
9434:
9425:
9416:
9395:
9354:
9350:
9341:
9320:
9311:
9302:
9281:
9272:
9263:
9255:
9250:
9241:
9232:
9223:
9200:
9194:
9185:
9152:
9143:
9134:
9125:
9116:
9107:
9098:
9089:
9084:Browder 1976
9080:
9075:Quillen 1975
9071:
9066:Quillen 1973
9062:
9053:
9044:
9035:
9026:
9017:
9008:
8999:
8990:
8981:
8972:
8963:
8954:
8949:Quillen 1971
8945:
8936:
8927:
8918:
8909:
8900:
8891:
8882:
8877:Gersten 1969
8873:
8864:
8855:
8846:
8837:
8832:Karoubi 1968
8828:
8819:
8810:
8801:
8792:
8783:
8774:
8765:
8748:
8739:
8738:Topological
8725:
8717:
8709:
8701:
8693:
8684:
8660:
8656:
8652:
8645:
8641:
8637:
8633:
8626:
8616:
8611:
8606:
8589:
8587:
8569:
8564:
8559:
8555:
8549:
8543:
8537:
8533:
8527:
8523:
8519:
8513:
8508:
8502:
8498:
8494:
8490:
8483:
8476:
8472:
8467:
8462:
8457:
8453:
8450:Armand Borel
8445:
8441:
8439:number field
8430:
8428:
8422:
8409:
8403:
8399:
8395:
8391:
8386:
8382:
8376:
8371:
8365:
8360:
8356:
8351:
8346:
8340:
8335:
8331:
8324:
8317:
8312:
8308:
8306:
8297:
8295:
8289:
8277:
8273:
8271:
8253:
8249:
8247:
8235:
8227:
8216:
8209:
8205:
8198:
8190:
8186:
8183:regular ring
8175:
8171:
8166:
8162:
8158:
8156:
8151:
8143:
8139:
8135:
8131:
8124:
8120:
8115:
8111:
8107:
8101:
8095:
8091:
8084:
8082:
8080:of a space.
7972:
7864:
7863:
7834:
7801:
7767:
7703:monomorphism
7696:
7643:
7639:
7550:
7545:
7541:
7537:
7535:
7523:
7515:
7511:
7504:
7500:
7496:
7494:
7387:-theory via
7384:
7380:
7378:
7272:
7268:
7261:direct limit
7256:
7247:
7244:
7153:
7151:
7141:
7139:
7134:
7130:
7126:
7122:
7118:
7114:
7110:
7106:
7091:
7087:
7083:
7079:
7075:
7071:
7067:
7063:
7055:
7051:
7047:
7043:
7039:
7031:
7029:
7023:
7010:, proven by
6997:
6992:
6922:
6805:
6801:
6772:
6696:
6692:
6636:
6547:
6436:
6431:
6423:
6418:
6414:
6405:
6403:
6397:
6390:
6386:
6382:
6380:
6296:
6287:
6174:
6170:
6163:
6161:
6149:
6088:
6084:
6076:
6072:
6068:
6064:
6060:
6050:
5906:
5901:
5896:
5895:
5893:
5699:
5688:
5686:
5676:
5672:
5667:
5663:
5655:
5649:
5517:
5513:
5509:
5508:
5498:
5494:
5490:
5486:
5480:
5471:
5467:
5461:
5456:
5444:
5441:cyclic group
5436:
5430:
5419:
5297:
5287:
5276:
5265:
5194:
5189:
5185:
5176:: it is the
5170:
5165:
5151:
5144:
5137:
5133:
5126:
5118:
5111:
5107:
5103:
5099:
5092:
5088:
5084:
5077:
5074:reduced norm
5069:
5065:
5060:
5050:
5043:
5039:
5037:
4986:
4984:) vanishes.
4981:
4974:
4971:Milnor (1971
4962:
4954:
4950:
4946:
4939:
4935:
4928:
4924:
4922:
4917:
4909:
4905:
4898:
4894:
4887:
4883:
4879:
4871:
4869:
4784:
4683:
4676:
4672:
4668:
4664:
4660:
4656:
4649:
4645:
4641:
4637:
4633:
4629:
4622:
4618:
4614:
4606:
4602:
4594:
4592:
4398:
4267:
4265:
4257:
4249:
4248:of the ring
4245:
4241:
4237:
4233:
4229:
4217:
4216:. Define an
4154:block matrix
4149:
4145:
4142:direct limit
4139:
4071:
3930:
3923:
3918:
3910:
3903:
3896:
3893:Picard group
3872:
3870:
3861:
3850:
3846:
3842:
3835:
3831:
3827:
3820:
3818:
3815:
3684:
3682:
3579:
3575:
3568:
3564:
3562:
3554:
3546:
3535:
3531:
3526:) of (real)
3523:
3519:
3514:
3513:topological
3508:
3501:
3497:
3493:
3487:
3481:
3478:Picard group
3473:
3472:, where Pic(
3469:
3465:
3461:
3454:
3446:
3435:
3431:
3424:
3420:
3406:
3402:
3395:
3387:
3365:
3361:
3353:
3346:
3342:
3334:
3330:
3326:
3322:
3318:
3314:
3310:
3298:
3296:
3291:
3287:
3175:
3171:
3169:
3102:
2996:
2989:
2985:
2984:If the ring
2983:
2975:
2971:
2967:
2962:
2958:
2954:
2950:
2943:
2939:
2932:
2931:gives a map
2928:
2924:
2909:
2902:
2901:The functor
2900:
2892:
2881:
2877:
2875:
2869:
2861:
2857:
2849:
2841:
2836:
2832:
2827:
2823:
2819:
2815:
2807:
2801:
2796:
2792:
2781:
2773:
2769:
2765:
2761:
2759:
2754:
2750:
2746:
2742:
2738:
2734:
2730:
2718:
2714:
2706:
2698:
2694:
2687:
2683:
2676:
2672:
2667:
2663:
2659:
2655:
2649:
2644:
2640:
2632:
2624:
2620:
2608:
2602:
2597:
2593:
2591:
2505:
2501:
2497:
2492:
2488:
2484:
2479:
2475:
2471:
2464:
2457:
2453:
2449:
2392:
2387:
2378:
2374:
2369:
2365:
2326:
2322:
2318:
2304:
2298:
2290:
2286:
2282:
2278:
2272:
2268:
2260:
2256:
2254:
2247:
2240:
2236:
2228:
2221:
2216:
2212:
2208:
2204:
2203:)) does for
2200:
2192:
2185:
2181:
2177:
2173:
2169:
2165:
2161:
2155:
2150:
2146:
2139:
2135:
2131:
2127:
2123:
2119:
2115:
2111:
2107:
2105:
2100:
2097:
2090:
2086:
2082:
2070:
2068:
2063:
2059:
2055:
2050:
2046:
2041:
2037:
2033:
2029:
2025:
2023:
2016:
2005:
2000:
1996:
1992:
1988:
1984:
1978:
1973:
1965:
1961:
1957:
1953:
1949:
1945:
1939:
1933:
1929:
1925:
1921:
1915:
1910:
1908:
1903:
1899:
1895:
1891:
1887:
1879:
1875:
1871:
1867:
1864:
1857:
1853:
1845:
1843:
1837:
1829:
1825:
1821:
1817:
1813:
1809:
1805:
1801:
1797:
1793:
1789:
1785:
1778:
1774:
1770:
1766:
1762:
1758:
1754:
1750:
1749:
1744:
1741:
1736:
1729:
1725:
1720:
1706:
1702:
1698:
1694:
1690:
1682:
1678:
1674:
1667:
1663:
1657:
1648:
1646:
1641:
1634:
1630:
1619:
1615:
1613:
1605:
1601:
1594:
1590:
1583:
1579:
1572:
1568:
1566:
1561:
1557:
1550:
1543:
1539:
1535:
1531:
1527:
1523:
1514:
1510:
1506:
1501:
1497:
1493:
1489:
1481:
1477:
1471:
1465:
1461:
1457:
1442:
1440:
1435:
1431:
1427:
1423:
1419:
1415:
1411:
1407:
1403:
1399:
1397:
1392:
1387:
1383:
1379:
1372:
1365:
1361:
1357:
1353:
1349:
1344:
1340:
1336:
1334:
1328:
1316:
1309:
1302:local fields
1295:
1173:
1166:
1162:
1151:
1144:
1137:
1131:
1127:
1123:
1117:
1110:
1102:
1098:
1093:
1088:
1083:
1071:
1069:
1064:
1056:
1049:
1045:
1038:
1031:
1027:
1023:
1019:
1012:
1008:
1001:
994:
991:
987:
983:
979:
977:
969:
962:
955:
951:
947:
943:
938:
934:
930:
926:
920:
916:
912:
908:
903:
896:
877:
873:
858:
856:
843:
835:
832:
828:
825:
818:
813:
809:
805:
804:and denoted
801:
797:
793:cell complex
774:
758:
756:
748:
741:
734:
726:
722:
718:
713:
709:
702:
694:
689:
685:
681:
673:
654:
650:
643:
639:
635:
633:
628:
624:
620:
616:
612:
608:
604:
600:
594:
590:
586:
582:
575:
570:
565:
561:
557:
552:
540:
532:
528:
526:
521:
517:
511:
446:
442:
430:
426:
422:
418:
414:
410:
406:
402:
398:
386:
384:
358:
353:
349:
341:
325:
311:
303:
291:
289:
275:
267:
255:
248:
247:, the group
244:
240:
235:
227:
220:
212:
208:
205:Picard group
198:
191:
189:, the group
186:
175:
169:
162:
153:
149:
147:
140:
128:real numbers
107:
99:
92:
76:
75:
66:
54:
32:
30:
29:
11465:: 243â327.
11436:(1): 1â57.
11021:: 265â307.
11015:Math. Scand
10744:. Benjamin.
10734:Bass, Hyman
10702:Bass, Hyman
10668:Bass, Hyman
9809:Bass, Hyman
9511:(2): 1â62,
9351:Am. J. Math
9129:Dennis 1976
9003:Barden 1963
8931:Totaro 1992
8904:Milnor 1970
8850:Milnor 1971
8769:Weibel 1999
8663:-modules)
8224:isomorphism
8138:-groups of
8100:projective
7699:epimorphism
6635:are termed
6539:graded ring
6177:-groups by
6169:of a field
5652:root system
5199:of the map
5167:John Milnor
2643:-theory of
2373:-groups on
2184:-groups as
2172:is a space
2168:-theory of
1918:-cobordisms
1600:. Because
1530:-theory of
1107:John Milnor
1061:Max Karoubi
848:John Milnor
601:pushforward
599:called the
537:Chow groups
413:was called
346:line bundle
318:Gustav Roch
217:class group
211:, and when
116:Chow groups
47:ring theory
11494:Categories
11356:Algebraic
11339:Algebraic
11271:Algebraic
10970:Astérisque
10936:J. Algebra
10883:Cerf, Jean
10872:Algebraic
10853:Algebraic
10833:: 97â136.
10738:Algebraic
10658:(Thesis).
10593:0801.19001
10516:1125.19300
10498:BirkhÀuser
10490:Algebraic
10460:0746.19001
10343:0468.18006
10291:0801.19001
10153:0237.18005
10071:0949.11002
10025:1068.11023
9953:1019.11032
9923:1137.12001
9825:0174.30302
9813:Algebraic
9802:References
9740:Algebraic
9717:2021-03-26
9543:0261.20025
9387:0040.30302
9093:Soulé 1979
9057:Bloch 1974
8994:Mazur 1963
8985:Smale 1962
8958:Segal 1974
8747:Rigidity (
8655:) are the
8619:Hyman Bass
8588:Algebraic
8421:Algebraic
8364:) = 0 for
8288:Algebraic
8258:Waldhausen
8222:(R) is an
8180:noetherian
8123:) for all
6639:, denoted
5266:or as the
5160:See also:
4953:. This is
4144:of the GL(
3920:Hyman Bass
3543:continuous
3504:. Given a
3418:local ring
3376:See also:
2876:The lower
2780:. There,
2721:-theory.
2500:) for all
1711:loop space
1007:of a ring
984:Algebraic
902:of a ring
885:suspension
866:Hyman Bass
840:group ring
634:The group
549:Todd class
148:The lower
143:-functions
136:regulators
31:Algebraic
11166:-theory I
10899:: 5â173.
10752:(1974). "
10114:0020-9910
9660:0073-8301
9527:0012-9593
9371:0002-9327
9012:Cerf 1970
8967:Wall 1965
8868:Swan 1968
8814:Bass 1968
8522:)/tors.=
8056:π
7923:π
7784:→
7778:←
7764:such that
7749:×
7743:⊂
7671:⟶
7665:⟵
7458:×
7439:
7421:π
7259:) is the
7208:
7190:π
7104:fibration
7062:so that
6932:∂
6895:⊗
6886:μ
6861:→
6856:∗
6848:×
6845:⋯
6842:×
6837:∗
6820:∂
6782:μ
6749:μ
6726:→
6721:∗
6710:∂
6663:…
6572:⊗
6569:⋯
6566:⊗
6541:which is
6509:∗
6468:→
6455:×
6349:≠
6331:−
6322:⊗
6261:−
6252:⊗
6233:×
6220:∗
6193:∗
6123:−
6110:−
6025:⋯
6003:→
5975:→
5945:→
5873:→
5857:→
5841:→
5805:⊕
5801:→
5785:→
5769:→
5733:⊕
5729:→
5679:-groups.
5632:⟩
5614:∣
5605:−
5596:⊗
5590:⟨
5580:×
5564:⊗
5558:×
5462:We have K
5443:of order
5400:∗
5365:∏
5361:×
5356:∗
5231:→
5219:
5213::
5210:φ
4852:→
4847:∗
4839:→
4827:
4821:→
4809:
4803:→
4789:, namely
4764:→
4759:∗
4751:→
4729:→
4704:→
4540:→
4518:→
4490:→
4460:→
4438:→
4354:→
4312:
4256:Relative
4188:
4170:
4110:
4104:
4086:
4045:
4027:
4004:
3977:
3933:) is the
3867:as a ring
3771:→
3729:
3656:∈
3650:−
3638:×
3632:∈
3553:Relative
3476:) is the
3411:dimension
3254:~
3150:→
3044:⋂
3017:~
2974:, making
2802:In 1976,
2757:-theory.
2568:
2555:≅
2377:, to the
2317:of which
2079:Jean Cerf
1870:), where
1832:-theory.
1739:-groups.
1474:− 1
1395:-theory.
1378:. Their
1306:John Tate
1278:⟩
1260:∖
1254:∈
1248::
1239:−
1230:⊗
1224:⟨
1214:×
1198:⊗
1192:×
876:-theory,
846:. Later
831:), where
812:), where
535:) to the
491:→
480:→
474:→
463:→
239:, and if
182:. For a
126:into the
11294:Topology
11194:Topology
11071:(1963).
11053:: 1â62.
11039:(1969).
10885:(1970).
10851:(1978),
10819:(1958).
10736:(1968).
10654:(1964).
10638:(1961),
10606:(2013),
10547:(1994),
10401:(1999),
10352:(2005),
10245:(1994),
10131:(1971),
9993:(2005),
9964:K-Theory
9879:(1999),
9811:(1968),
9734:(1985),
8751:-theory)
8667:See also
8505:positive
8268:Examples
8174:). When
8104:-modules
7678:″
7661:′
7551:Suppose
6417:⧠2 but
5620:≠
4671:â GL(1,
4636:. As E(
4224:). Then
3464:) = Pic(
3372:Examples
3210:-module
3174:-module
2957:-module
2592:for all
2239:)) â Wh(
1878:because
1627:spectrum
1476:, where
1348:for all
1109:defined
1053:−n
1048:-groups
978:Work in
925:, where
581: :
560: :
487:″
470:′
435:quotient
71:integers
43:topology
39:geometry
11450:2372133
11421:1970465
11392:1970382
11331:1106918
11247:2372978
11181:-theory
11136:Sur la
11129:-theory
11105:Bibcode
11086:: 5â93.
10983:0353337
10783:1970902
10742:-theory
10694:1970360
10585:1282290
10494:-theory
10423:1732049
10391:2181823
10283:1282290
10235:0335604
10214:0422392
10195:0338129
10145:0349811
10122:0260844
10094:Bibcode
10063:1761696
10017:2104929
9984:1268594
9893:1715873
9885:-theory
9866:2182598
9817:-theory
9774:0802796
9668:2031199
9535:0240214
9379:2372036
8742:-theory
8704:-theory
8696:-theory
8687:-theory
8497:unless
8465:) and K
8433:is the
8413: (
8185:, then
7833:of the
7730:motives
7263:of the
7074:) and (
7026:-theory
7022:Higher
6637:symbols
6496:making
6299:by the
6292:of the
6152:-theory
6148:Milnor
6079:in the
6047:Pairing
5180:of the
4640:) â
SL(
4609:to the
4212:is its
4140:is the
3937:of the
3517:-theory
2912:to the
2872:-groups
2315:spectra
2311:sheaves
2301:-theory
2276:⋅
2158:×
2134:. The
2075:isotopy
2008:×
1920:. Two
1713:of the
1701:. The
1689:, then
1480:is the
1331:-groups
1327:Higher
997:-theory
988:-theory
946:)) and
798:torsion
437:of the
433:) is a
286:History
160:, then
35:-theory
11448:
11419:
11390:
11329:
11319:
11245:
10981:
10781:
10692:
10598:Errata
10591:
10583:
10573:
10514:
10504:
10478:
10458:
10448:
10421:
10389:
10379:
10341:
10331:
10309:
10296:Errata
10289:
10281:
10271:
10233:
10212:
10193:
10183:
10151:
10143:
10120:
10112:
10069:
10061:
10051:
10023:
10015:
10005:
9982:
9951:
9941:
9921:
9911:
9891:
9864:
9854:
9823:
9772:
9762:
9666:
9658:
9541:
9533:
9525:
9385:
9377:
9369:
9211:
8499:i=4k+1
8215:(R) â
8189:- and
8129:scheme
8094:). If
8047:being
7867:-group
7571:is an
7495:Since
7245:Here Ï
7046:) and
7004:Galois
6908:
6773:where
6343:
6028:
5894:where
5879:
5497:/2 if
5405:
5197:kernel
5178:center
5072:, the
5015:and SL
4886:, so
4570:
4381:
4156:, and
3889:λ-ring
3798:
3665:
3511:, the
2868:Lower
1995:, and
1709:, the
1685:is an
1404:ad hoc
747:, and
666:Atiyah
423:Klasse
324:. If
262:, the
59:groups
49:, and
11446:JSTOR
11417:JSTOR
11388:JSTOR
11362:, in
11243:JSTOR
11076:(PDF)
10779:JSTOR
10690:JSTOR
10357:(PDF)
9375:JSTOR
8757:Notes
8501:with
8178:is a
7836:nerve
7642:âČ to
7267:over
7255:, GL(
7251:is a
7102:of a
7000:Ă©tale
6995:map.
6411:) = 0
6083:with
6067:over
5911:and K
5695:with
5691:is a
5422:Gauss
5188:) of
5091:and S
4955:false
4949:) to
4923:When
4101:colim
4072:Here
3530:over
3438:, by
3409:, by
3385:field
3356:) â K
3301:is a
2884:be a
2467:with
2281:(the
1964:into
850:used
514:= +
407:class
328:is a
158:field
156:is a
11317:ISBN
10571:ISBN
10502:ISBN
10476:ISBN
10446:ISBN
10377:ISBN
10329:ISBN
10307:ISBN
10269:ISBN
10181:ISBN
10110:ISSN
10049:ISBN
10003:ISBN
9939:ISBN
9909:ISBN
9852:ISBN
9792:1999
9779:1999
9760:ISBN
9656:ISSN
9601:2005
9523:ISSN
9367:ISSN
9209:ISBN
8415:1993
8402:for
8390:) =
8339:) =
8307:If
8234:The
7536:The
7522:The
7082:) â
7002:(or
6413:for
6381:For
6075:and
6063:and
5493:) =
5470:) =
5123:Wang
5087:) â
5042:) â
4912:â SK
4908:) â
4874:= GL
4675:) â
4663:)/E(
4632:) â
4605:) â
4593:For
4266:The
4240:)/E(
3683:The
3563:Let
3468:) â
3445:For
3440:rank
3394:and
3390:are
3364:) =
3180:free
2942:) â
2886:ring
2725:and
2028:and
2014:for
1960:and
1952:and
1942:+ 1)
1932:are
1928:and
1902:and
1890:and
1719:+ =
1549:and
1150:and
1126:) â
968:and
915:) /
868:and
589:) â
547:and
130:and
11467:doi
11438:doi
11409:doi
11380:doi
11349:. I
11309:doi
11235:doi
11203:doi
11142:,
11113:doi
11055:doi
11023:doi
10999:267
10944:doi
10901:doi
10835:doi
10806:111
10771:doi
10720:doi
10682:doi
10618:AMS
10596:.
10589:Zbl
10563:doi
10512:Zbl
10456:Zbl
10411:doi
10369:doi
10339:Zbl
10294:.
10287:Zbl
10261:doi
10173:doi
10149:Zbl
10102:doi
10067:Zbl
10041:doi
10021:Zbl
9972:doi
9949:Zbl
9919:Zbl
9844:doi
9821:Zbl
9752:doi
9648:doi
9539:Zbl
9513:doi
9383:Zbl
9359:doi
8368:â„1,
8284:.)
8150:on
8108:BGL
7839:of
7497:BGL
7137:).
6594:in
5687:If
5459:).
5184:St(
4920:).
4884:(A)
4613:of
4309:ker
3906:).
3871:If
3726:ker
3480:of
3297:If
3290:of
3115:dim
3077:dim
2961:to
2842:THH
2837:THH
2313:of
2103:).
2077:.
2024:If
2019:â„ 5
1981:â„ 5
1972:'s
1707:BQC
1569:BGL
1536:BGL
1507:BGL
1494:BGL
1484:th
1458:BGL
1122:St(
1018:of
1011:to
906:is
842:of
791:or
664:.
551:of
539:of
348:on
340:on
207:of
87:on
11496::
11463:45
11461:.
11444:.
11434:72
11432:.
11415:.
11405:42
11403:.
11386:.
11376:81
11374:.
11327:MR
11325:,
11315:,
11297:31
11292:,
11279:18
11241:.
11231:84
11229:.
11199:13
11197:.
11191:.
11111:.
11099:.
11084:15
11082:.
11078:.
11049:.
11043:.
11019:28
11017:.
11013:.
10997:.
10979:MR
10977:,
10973:,
10940:17
10938:.
10934:.
10897:39
10895:.
10889:.
10831:86
10829:.
10823:.
10815:;
10777:.
10767:99
10765:.
10716:68
10714:.
10708:.
10688:.
10678:86
10676:.
10634:;
10612:,
10587:,
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10569:,
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10510:,
10500:,
10474:,
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10419:MR
10417:,
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10359:,
10337:,
10327:,
10285:,
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10259:,
10251:,
10231:MR
10210:MR
10191:MR
10189:,
10179:,
10147:,
10141:MR
10139:,
10118:MR
10116:,
10108:,
10100:,
10088:,
10065:,
10059:MR
10057:,
10047:,
10039:,
10019:,
10013:MR
10011:,
10001:,
9980:MR
9978:,
9966:,
9947:,
9937:,
9917:,
9907:,
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9875:;
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9860:,
9850:,
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9770:MR
9768:,
9758:,
9738:,
9710:.
9664:MR
9662:,
9654:,
9644:98
9642:,
9537:,
9531:MR
9529:,
9521:,
9461:^
9404:^
9381:.
9373:.
9365:.
9355:72
9353:.
9329:^
9290:^
9207:,
9173:^
9161:^
8604:.
8552:+2
8540:+1
8516:+1
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8379:â1
8304::
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7436:GL
7376:.
7205:GL
7066:â
6545:.
6537:a
6212::=
5915::
5904:.
5428:.
5274:.
5216:St
5192:.
4910:A*
4872:A*
4855:1.
4824:GL
4806:SL
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4634:A*
4607:A*
4597:a
4252:.
4185:GL
4167:GL
4107:GL
4083:GL
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4024:GL
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3992:ab
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3941::
3582::
3549:.
3453:,
3449:a
3368:.
3333:â
3329:â
3313:=
3294:.
2927:â
2888:.
2835:â
2675:;
2559:CH
2474:,
2450:CH
2385:.
2250:))
2049:â
2021:.
1991:,
1983:,
1906:.
1691:QC
1611:.
1602:GL
1591:GL
1490:BU
1384:KV
1323:.
1165:,
935:GL
927:GL
909:GL
806:Wh
768:.
740:,
564:â
298:.
282:.
145:.
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45:,
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11473:.
11469::
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