197:, under whose supervision he received a Ph.D. in 1930 with thesis entitled "I. Geodesics on a Two-Dimensional Riemannian Manifold with Periodic Coefficients II. Poincare's Rotation Number and Morse's Type Number".
31:
635:
Proceedings of the
Conference on Topological Dynamics held at Yale University on August 23, 1972, in honor of Professor Gustav Arnold Hedlund on the occasion of his retirement
344:
Proceedings of the
Conference on Topological Dynamics held at Yale University on August 23, 1972, in honor of Professor Gustav Arnold Hedlund on the occasion of his retirement
486:
216:. At Yale, he became the Philip Schuyler Beebe Professor of Mathematics, and chaired the mathematics department for ten years. He was also a member of the
225:
342:
Beck, Anatole, ed. (1973), "Citation read to the
Faculty of Graduate School of Yale University on the occasion of Professor Hedlund's retirement",
767:
702:
757:
762:
404:
772:
312:
In 1972, a conference on topological dynamics was held to honor
Hedlund on the occasion of his retirement from Yale. The editor of the
564:
727:
672:
650:
271:
732:
712:
722:
707:
737:
717:
752:
747:
390:
217:
611:
742:
320:, wrote that it was "our token of respect to the man who did so much to foster and build this field".
228:
in
Princeton 1962-1963. He retired from Yale in 1972, but afterwards held a visiting professorship at
374:, Dolph Briscoe Center for American History, The University of Texas at Austin, retrieved 2011-09-10.
182:
54:
263:, whose origins as a field of modern mathematics can be traced to a 1944 paper of Hedlund, and to
676:
209:
113:
221:
697:
692:
660:
597:
547:
439:
351:
264:
170:
371:
8:
505:
Hedlund, G. A. (1969), "Endomorphisms and
Automorphisms of the Shift Dynamical Systems",
229:
190:
78:
522:
427:
236:
186:
82:
646:
346:, Lecture Notes in Mathematics, Vol. 318, Berlin: Springer-Verlag, p. viii+285,
294:
275:
260:
240:
205:
166:
138:
588:
526:
638:
583:
514:
419:
279:
120:
637:, Lecture Notes in Mathematics, Vol. 318, vol. 318, Berlin: Springer-Verlag,
278:, is named after Hedlund. Hedlund first published this theorem in 1969, crediting
656:
593:
544:
435:
347:
213:
109:
201:
686:
256:
194:
162:
143:
125:
630:
465:
452:
386:
317:
283:
560:
313:
99:
193:, and returned to Harvard for his doctoral studies. He was a student of
642:
518:
431:
252:
208:, where he remained for nine years. From 1939 to 1948 he taught at the
423:
306:
224:, which he visited in 1933, 1938, and 1953. He was the Director of
251:
One of
Hedlund's early results was an important theorem about the
30:
466:"Letter to the editor: Center for Communications Research"
204:, and after receiving his doctorate he took a position at
239:, many of them through two of his students at Virginia,
405:"Poincaré's rotational number and Morse's type number"
200:
While still studying at
Columbia, Hedlund taught at
463:
470:The Institute of Mathematical Statistics Bulletin
684:
453:Hedlund, Gustav A., Institute for Advanced Study
559:
612:"Sigma Xi Elects Eleven Persons To Membership"
259:. He also made significant contributions to
161:(May 7, 1904 – March 15, 1993), an American
337:
335:
333:
29:
673:Literature by and about Gustav A. Hedlund
587:
367:
365:
363:
361:
569:, by W. H. Gottschalk and G. A. Hedlund"
297:, American Mathematical Society, 1955).
504:
402:
330:
685:
457:
358:
289:Hedlund was the co-author of the book
235:Hedlund died in 1993. He has over 200
226:IDA's Communications Research Division
185:. He did his undergraduate studies at
768:People from Somerville, Massachusetts
372:G. A. Hedlund Papers, 1941-1945, 2008
703:20th-century American mathematicians
629:
382:
380:
341:
300:
274:, a topological characterization of
758:20th-century Swedish mathematicians
13:
763:American people of Swedish descent
14:
784:
773:Mathematicians from Massachusetts
377:
181:Hedlund was born May 7, 1904, in
189:, earned a master's degree from
623:
604:
589:10.1090/S0002-9904-1955-09999-3
553:
728:University of Virginia faculty
533:
498:
480:
446:
396:
1:
391:Mathematics Genealogy Project
323:
272:Curtis–Hedlund–Lyndon theorem
165:, was one of the founders of
218:Institute for Advanced Study
176:
7:
733:Wesleyan University faculty
507:Mathematical Systems Theory
464:David I. Lieberman (1989).
403:Hedlund, Gustav A. (1932).
246:
10:
789:
713:Columbia University alumni
488:Dynamics of Geodesic Flow.
212:, after which he moved to
723:Bryn Mawr College faculty
708:Harvard University alumni
183:Somerville, Massachusetts
152:
131:
119:
105:
95:
88:
74:
62:
55:Somerville, Massachusetts
40:
28:
21:
738:Yale University faculty
677:German National Library
305:Hedlund was elected to
718:Hunter College faculty
412:Trans. Amer. Math. Soc
210:University of Virginia
114:University of Virginia
16:American mathematician
576:Bull. Amer. Math. Soc
387:Gustav Arnold Hedlund
316:from the conference,
222:Princeton, New Jersey
159:Gustav Arnold Hedlund
753:Cellular automatists
748:Topological dynamics
567:Topological dynamics
541:Topological Dynamics
493:Bulletin of the AMS.
291:Topological Dynamics
265:topological dynamics
243:and W. Roy Utz, Jr.
237:academic descendants
171:topological dynamics
35:Gustav Hedlund, 1969
286:as co-discoverers.
230:Wesleyan University
191:Columbia University
79:Columbia University
643:10.1007/BFb0061716
616:The Cavalier Daily
519:10.1007/BF01691062
187:Harvard University
83:Harvard University
743:Symbolic dynamics
652:978-3-540-06187-8
543:by Y. N. Dowker,
301:Awards and honors
295:Walter Gottschalk
276:cellular automata
261:symbolic dynamics
241:Walter Gottschalk
206:Bryn Mawr College
156:
155:
139:Walter Gottschalk
132:Doctoral students
90:Scientific career
23:Gustav A. Hedlund
780:
665:
663:
627:
621:
619:
618:, April 21, 1943
608:
602:
601:
591:
573:
557:
551:
537:
531:
529:
502:
496:
484:
478:
477:
461:
455:
450:
444:
443:
409:
400:
394:
384:
375:
369:
356:
354:
339:
280:Morton L. Curtis
121:Doctoral advisor
69:
50:
48:
33:
19:
18:
788:
787:
783:
782:
781:
779:
778:
777:
683:
682:
669:
668:
653:
628:
624:
610:
609:
605:
571:
561:Halmos, Paul R.
558:
554:
538:
534:
503:
499:
485:
481:
462:
458:
451:
447:
424:10.2307/1989503
407:
401:
397:
385:
378:
370:
359:
340:
331:
326:
303:
249:
214:Yale University
179:
148:
112:
110:Yale University
81:
75:Alma mater
67:
58:
52:
46:
44:
36:
24:
17:
12:
11:
5:
786:
776:
775:
770:
765:
760:
755:
750:
745:
740:
735:
730:
725:
720:
715:
710:
705:
700:
695:
681:
680:
667:
666:
651:
633:, ed. (1973),
622:
603:
582:(6): 584–588.
552:
532:
513:(4): 320–375,
497:
495:vol. 45, 1939.
479:
456:
445:
395:
376:
357:
328:
327:
325:
322:
302:
299:
257:geodesic flows
248:
245:
202:Hunter College
178:
175:
154:
153:
150:
149:
147:
146:
141:
135:
133:
129:
128:
123:
117:
116:
107:
103:
102:
97:
93:
92:
86:
85:
76:
72:
71:
70:(aged 88)
66:March 15, 1993
64:
60:
59:
53:
42:
38:
37:
34:
26:
25:
22:
15:
9:
6:
4:
3:
2:
785:
774:
771:
769:
766:
764:
761:
759:
756:
754:
751:
749:
746:
744:
741:
739:
736:
734:
731:
729:
726:
724:
721:
719:
716:
714:
711:
709:
706:
704:
701:
699:
696:
694:
691:
690:
688:
678:
674:
671:
670:
662:
658:
654:
648:
644:
640:
636:
632:
631:Beck, Anatole
626:
617:
613:
607:
599:
595:
590:
585:
581:
577:
570:
568:
562:
556:
549:
546:
542:
536:
528:
524:
520:
516:
512:
508:
501:
494:
490:
489:
483:
475:
471:
467:
460:
454:
449:
441:
437:
433:
429:
425:
421:
417:
413:
406:
399:
392:
388:
383:
381:
373:
368:
366:
364:
362:
353:
349:
345:
338:
336:
334:
329:
321:
319:
315:
310:
308:
298:
296:
292:
287:
285:
281:
277:
273:
268:
266:
262:
258:
254:
244:
242:
238:
233:
231:
227:
223:
219:
215:
211:
207:
203:
198:
196:
195:Marston Morse
192:
188:
184:
174:
172:
168:
164:
163:mathematician
160:
151:
145:
144:Annita Tuller
142:
140:
137:
136:
134:
130:
127:
126:Marston Morse
124:
122:
118:
115:
111:
108:
104:
101:
98:
94:
91:
87:
84:
80:
77:
73:
65:
61:
56:
43:
39:
32:
27:
20:
634:
625:
615:
606:
579:
575:
566:
555:
540:
535:
510:
506:
500:
492:
487:
482:
473:
469:
459:
448:
418:(1): 75–97.
415:
411:
398:
343:
318:Anatole Beck
311:
304:
290:
288:
284:Roger Lyndon
269:
250:
234:
199:
180:
158:
157:
106:Institutions
89:
68:(1993-03-15)
698:1993 deaths
693:1904 births
314:festschrift
100:Mathematics
51:May 7, 1904
687:Categories
539:Review of
324:References
253:ergodicity
47:1904-05-07
679:catalogue
565:"Review:
476:(6): 581.
309:in 1943.
177:Biography
563:(1955).
527:21803927
307:Sigma Xi
247:Research
167:symbolic
675:in the
661:0370654
598:1565733
548:0074810
440:1501630
432:1989503
389:at the
352:0370654
659:
649:
596:
525:
438:
430:
350:
293:(with
96:Fields
572:(PDF)
523:S2CID
428:JSTOR
408:(PDF)
647:ISBN
491:In:
282:and
270:The
169:and
63:Died
57:, US
41:Born
639:doi
584:doi
515:doi
420:doi
255:of
220:in
689::
657:MR
655:,
645:,
614:,
594:MR
592:.
580:61
578:.
574:.
545:MR
521:,
509:,
474:18
472:.
468:.
436:MR
434:.
426:.
416:34
414:.
410:.
379:^
360:^
348:MR
332:^
267:.
232:.
173:.
664:.
641::
620:.
600:.
586::
550:.
530:.
517::
511:3
442:.
422::
393:.
355:.
49:)
45:(
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
