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Associated prime

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1650: 862: 1286: 323: 756: 215: 115: 595: 1358: 509: 444: 380: 1005: 965:, the map from the isomorphism classes of indecomposable injective modules to the spectrum is a bijection. Moreover, a complete set of representatives for those classes is given by 1423: 945: 1064: 1154: 1035: 681: 545: 1159: 785: 1089: 31: 248: 30:
This article mainly concerns associated primes in general ring theory. For the specific usage in commutative ring theory, see also
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on ideals (for example, any right or left Noetherian ring) every nonzero module has at least one associated prime.
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For a one-sided Noetherian ring, there is a surjection from the set of isomorphism classes of indecomposable
469: 404: 340: 1465:(considered as a free module over itself), but its associated prime ideal (2) is not an associated prime of 968: 1671: 1363: 907: 1044: 601:
while the rest of the associated primes (i.e., those properly containing associated primes) are called
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has either zero or one associated primes, making uniform modules an example of coprimary modules.
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It is possible, even for a commutative local ring, that the set of associated primes of a
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Also linked with the concept of "associated primes" of the ideal are the notions of
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Picavet, Gabriel (1985). "Propriétés et applications de la notion de contenu".
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is coprimary if and only if it has exactly one associated prime. A submodule
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Primary decomposition § Primary decomposition from associated primes
1281:{\displaystyle I=((x^{2}+y^{2}+z^{2}+w^{2})\cdot (z^{3}-w^{3}-3x^{3}))} 857:{\displaystyle \mathrm {Ass} _{R}(M')\subseteq \mathrm {Ass} _{R}(M).} 1090:
Primary decomposition#Primary decomposition from associated primes
1080:
over any ring, there are only finitely many associated primes of
318:{\displaystyle \mathrm {Ann} _{R}(N)=\mathrm {Ann} _{R}(N')\,} 1609:, Graduate Texts in Mathematics No. 189, Berlin, New York: 758:; thus, the notion is a generalization of a primary ideal. 597:(with respect to the set-theoretic inclusion) are called 1088:
For the case for commutative Noetherian rings, see also
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a finite abelian group, then the associated primes of
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Most of these properties and assertions are given in (
75:. The set of associated primes is usually denoted by 1366: 1294: 1162: 1107: 1047: 1013: 971: 910: 788: 705: 661: 564: 525: 472: 407: 343: 251: 173: 81: 1645: 27:
Prime ideal that is an annihilator a prime submodule
1461:The group of order 2 is a quotient of the integers 751:{\displaystyle \operatorname {Ass} _{R}(R/I)=\{P\}} 1417: 1352: 1280: 1148: 1058: 1029: 999: 939: 856: 750: 675: 589: 539: 503: 438: 374: 317: 209: 109: 1663: 1533: 1521: 883:is empty. However, in any ring satisfying the 210:{\displaystyle \operatorname {Ass} _{R}(R/J).} 167:, and this set of prime ideals coincides with 1454:are exactly the primes dividing the order of 745: 739: 110:{\displaystyle \operatorname {Ass} _{R}(M),} 590:{\displaystyle \operatorname {Ass} _{R}(M)} 1431:is the ring of integers, then non-trivial 155:is decomposed as a finite intersection of 1634: 1353:{\displaystyle (x^{2}+y^{2}+z^{2}+w^{2})} 1115: 1055: 1026: 996: 631: = 0 for some positive integer 500: 435: 371: 314: 1564: 1486: 635:. A nonzero finitely generated module 504:{\displaystyle \mathrm {Ann} _{R}(m)\,} 439:{\displaystyle \mathrm {Ann} _{R}(N)\,} 375:{\displaystyle \mathrm {Ann} _{R}(N)\,} 14: 1664: 1000:{\displaystyle E(R/{\mathfrak {p}})\,} 140:, associated primes are linked to the 1418:{\displaystyle (z^{3}-w^{3}-3x^{3}).} 961:: For a commutative Noetherian ring 955:, then this map becomes a bijection. 458:is commutative, an associated prime 142:Lasker–Noether primary decomposition 1601: 1576:, vol. 150, Berlin, New York: 1539: 1527: 1515: 1439:of prime power order are coprimary. 1050: 988: 940:{\displaystyle \mathrm {Spec} (R).} 876:, their associated primes coincide. 767: 24: 921: 918: 915: 912: 832: 829: 826: 797: 794: 791: 481: 478: 475: 416: 413: 410: 352: 349: 346: 290: 287: 284: 260: 257: 254: 25: 1693: 1059:{\displaystyle {\mathfrak {p}}\,} 1648: 1066:ranges over the prime ideals of 616: = 0 for some nonzero 547:is isomorphic to a submodule of 1156:the associated prime ideals of 1480: 1409: 1367: 1347: 1295: 1275: 1272: 1230: 1224: 1172: 1169: 1149:{\displaystyle R=\mathbb {C} } 1143: 1119: 1023: 1017: 993: 975: 931: 925: 848: 842: 818: 807: 733: 719: 584: 578: 497: 491: 432: 426: 368: 362: 311: 300: 276: 270: 228: 201: 187: 101: 95: 13: 1: 1607:Lectures on modules and rings 1574:Graduate Texts in Mathematics 1549: 761: 466:is a prime ideal of the form 1446:is the ring of integers and 163:of these primary ideals are 151:. Specifically, if an ideal 7: 1095: 10: 1698: 325:for any nonzero submodule 71:of a (prime) submodule of 29: 1503:10.1080/00927878508823275 1490:Communications in Algebra 885:ascending chain condition 881:finitely generated module 117:and sometimes called the 1473: 450:is a prime submodule of 401:is an ideal of the form 770:) starting on page 86. 1518:, p. 117, Ex 40B. 1419: 1354: 1282: 1150: 1060: 1031: 1030:{\displaystyle E(-)\,} 1001: 941: 858: 752: 677: 591: 558:, minimal elements in 554:In a commutative ring 541: 511:for a nonzero element 505: 440: 376: 319: 211: 111: 18:Associated prime ideal 1420: 1355: 1283: 1151: 1061: 1032: 1002: 942: 859: 753: 678: 592: 542: 506: 441: 377: 333:. For a prime module 320: 212: 112: 1364: 1292: 1160: 1105: 1045: 1011: 969: 908: 786: 703: 659: 562: 523: 470: 405: 382:is a prime ideal in 341: 249: 171: 79: 1672:Commutative algebra 1640:Commutative algebra 1636:Matsumura, Hideyuki 1570:Commutative algebra 1560:Algèbre commutative 1433:free abelian groups 870:essential submodule 676:{\displaystyle M/N} 639:over a commutative 608:A module is called 540:{\displaystyle R/P} 245:if the annihilator 138:commutative algebra 1656:Mathematics portal 1415: 1350: 1278: 1146: 1056: 1027: 997: 937: 854: 748: 683:is coprimary with 673: 587: 537: 501: 436: 372: 315: 207: 107: 67:that arises as an 1620:978-0-387-98428-5 1587:978-0-387-94268-1 1497:(10): 2231–2265. 1075:Noetherian module 899:injective modules 16:(Redirected from 1689: 1658: 1653: 1652: 1642: 1631: 1598: 1556:Nicolas Bourbaki 1543: 1537: 1531: 1525: 1519: 1513: 1507: 1506: 1484: 1435:and non-trivial 1424: 1422: 1421: 1416: 1408: 1407: 1392: 1391: 1379: 1378: 1359: 1357: 1356: 1351: 1346: 1345: 1333: 1332: 1320: 1319: 1307: 1306: 1287: 1285: 1284: 1279: 1271: 1270: 1255: 1254: 1242: 1241: 1223: 1222: 1210: 1209: 1197: 1196: 1184: 1183: 1155: 1153: 1152: 1147: 1118: 1065: 1063: 1062: 1057: 1054: 1053: 1036: 1034: 1033: 1028: 1006: 1004: 1003: 998: 992: 991: 985: 946: 944: 943: 938: 924: 863: 861: 860: 855: 841: 840: 835: 817: 806: 805: 800: 757: 755: 754: 749: 729: 715: 714: 682: 680: 679: 674: 669: 596: 594: 593: 588: 574: 573: 546: 544: 543: 538: 533: 519:or equivalently 510: 508: 507: 502: 490: 489: 484: 445: 443: 442: 437: 425: 424: 419: 391:associated prime 381: 379: 378: 373: 361: 360: 355: 324: 322: 321: 316: 310: 299: 298: 293: 269: 268: 263: 216: 214: 213: 208: 197: 183: 182: 149:Noetherian rings 128: 116: 114: 113: 108: 91: 90: 43:associated prime 39:abstract algebra 21: 1697: 1696: 1692: 1691: 1690: 1688: 1687: 1686: 1662: 1661: 1654: 1647: 1621: 1611:Springer-Verlag 1588: 1578:Springer-Verlag 1566:Eisenbud, David 1552: 1547: 1546: 1538: 1534: 1526: 1522: 1514: 1510: 1485: 1481: 1476: 1403: 1399: 1387: 1383: 1374: 1370: 1365: 1362: 1361: 1341: 1337: 1328: 1324: 1315: 1311: 1302: 1298: 1293: 1290: 1289: 1288:are the ideals 1266: 1262: 1250: 1246: 1237: 1233: 1218: 1214: 1205: 1201: 1192: 1188: 1179: 1175: 1161: 1158: 1157: 1114: 1106: 1103: 1102: 1098: 1049: 1048: 1046: 1043: 1042: 1012: 1009: 1008: 987: 986: 981: 970: 967: 966: 959:Matlis' Theorem 911: 909: 906: 905: 864:If in addition 836: 825: 824: 810: 801: 790: 789: 787: 784: 783: 764: 725: 710: 706: 704: 701: 700: 699:if and only if 665: 660: 657: 656: 641:Noetherian ring 603:embedded primes 599:isolated primes 569: 565: 563: 560: 559: 529: 524: 521: 520: 485: 474: 473: 471: 468: 467: 420: 409: 408: 406: 403: 402: 356: 345: 344: 342: 339: 338: 303: 294: 283: 282: 264: 253: 252: 250: 247: 246: 231: 223:embedded primes 219:isolated primes 193: 178: 174: 172: 169: 168: 126: 86: 82: 80: 77: 76: 35: 28: 23: 22: 15: 12: 11: 5: 1695: 1685: 1684: 1679: 1674: 1660: 1659: 1644: 1643: 1632: 1619: 1603:Lam, Tsit Yuen 1599: 1586: 1562: 1551: 1548: 1545: 1544: 1532: 1520: 1508: 1478: 1477: 1475: 1472: 1471: 1470: 1459: 1440: 1437:abelian groups 1425: 1414: 1411: 1406: 1402: 1398: 1395: 1390: 1386: 1382: 1377: 1373: 1369: 1349: 1344: 1340: 1336: 1331: 1327: 1323: 1318: 1314: 1310: 1305: 1301: 1297: 1277: 1274: 1269: 1265: 1261: 1258: 1253: 1249: 1245: 1240: 1236: 1232: 1229: 1226: 1221: 1217: 1213: 1208: 1204: 1200: 1195: 1191: 1187: 1182: 1178: 1174: 1171: 1168: 1165: 1145: 1142: 1139: 1136: 1133: 1130: 1127: 1124: 1121: 1117: 1113: 1110: 1097: 1094: 1086: 1085: 1071: 1052: 1039:injective hull 1025: 1022: 1019: 1016: 995: 990: 984: 980: 977: 974: 956: 936: 933: 930: 927: 923: 920: 917: 914: 895: 892:uniform module 888: 877: 853: 850: 847: 844: 839: 834: 831: 828: 823: 820: 816: 813: 809: 804: 799: 796: 793: 763: 760: 747: 744: 741: 738: 735: 732: 728: 724: 721: 718: 713: 709: 672: 668: 664: 586: 583: 580: 577: 572: 568: 536: 532: 528: 499: 496: 493: 488: 483: 480: 477: 434: 431: 428: 423: 418: 415: 412: 370: 367: 364: 359: 354: 351: 348: 313: 309: 306: 302: 297: 292: 289: 286: 281: 278: 275: 272: 267: 262: 259: 256: 230: 227: 206: 203: 200: 196: 192: 189: 186: 181: 177: 157:primary ideals 106: 103: 100: 97: 94: 89: 85: 26: 9: 6: 4: 3: 2: 1694: 1683: 1682:Module theory 1680: 1678: 1675: 1673: 1670: 1669: 1667: 1657: 1651: 1646: 1641: 1637: 1633: 1630: 1626: 1622: 1616: 1612: 1608: 1604: 1600: 1597: 1593: 1589: 1583: 1579: 1575: 1571: 1567: 1563: 1561: 1557: 1554: 1553: 1542:, p. 86. 1541: 1536: 1530:, p. 85. 1529: 1524: 1517: 1512: 1504: 1500: 1496: 1492: 1491: 1483: 1479: 1468: 1464: 1460: 1457: 1453: 1449: 1445: 1441: 1438: 1434: 1430: 1426: 1412: 1404: 1400: 1396: 1393: 1388: 1384: 1380: 1375: 1371: 1342: 1338: 1334: 1329: 1325: 1321: 1316: 1312: 1308: 1303: 1299: 1267: 1263: 1259: 1256: 1251: 1247: 1243: 1238: 1234: 1227: 1219: 1215: 1211: 1206: 1202: 1198: 1193: 1189: 1185: 1180: 1176: 1166: 1163: 1140: 1137: 1134: 1131: 1128: 1125: 1122: 1111: 1108: 1100: 1099: 1093: 1091: 1083: 1079: 1076: 1072: 1069: 1040: 1020: 1014: 982: 978: 972: 964: 960: 957: 954: 953:Artinian ring 950: 934: 928: 904: 900: 896: 893: 889: 886: 882: 878: 875: 871: 867: 851: 845: 837: 821: 814: 811: 802: 781: 777: 773: 772: 771: 769: 759: 742: 736: 730: 726: 722: 716: 711: 707: 698: 697:primary ideal 694: 690: 686: 670: 666: 662: 654: 650: 646: 642: 638: 634: 630: 627: 623: 620: ∈  619: 615: 611: 606: 604: 600: 581: 575: 570: 566: 557: 552: 550: 534: 530: 526: 518: 514: 494: 486: 465: 461: 457: 453: 449: 429: 421: 400: 396: 392: 387: 385: 365: 357: 336: 332: 328: 307: 304: 295: 279: 273: 265: 244: 240: 236: 226: 224: 220: 204: 198: 194: 190: 184: 179: 175: 166: 162: 158: 154: 150: 147: 144:of ideals in 143: 139: 134: 132: 124: 120: 104: 98: 92: 87: 83: 74: 70: 66: 62: 59:is a type of 58: 55: 51: 48: 44: 40: 33: 19: 1677:Prime ideals 1639: 1606: 1569: 1559: 1535: 1523: 1511: 1494: 1488: 1482: 1466: 1462: 1455: 1451: 1447: 1443: 1428: 1087: 1081: 1077: 1067: 1037:denotes the 962: 958: 948: 873: 865: 779: 775: 765: 692: 688: 687:. An ideal 684: 655:-primary if 652: 648: 644: 636: 632: 628: 625: 621: 617: 613: 609: 607: 602: 598: 555: 553: 548: 516: 512: 463: 459: 455: 451: 447: 398: 394: 390: 388: 383: 334: 330: 326: 243:prime module 242: 241:is called a 238: 234: 232: 222: 218: 165:prime ideals 152: 135: 130: 123:assassinator 122: 118: 72: 64: 56: 49: 42: 36: 229:Definitions 146:commutative 131:annihilator 69:annihilator 61:prime ideal 1666:Categories 1550:References 762:Properties 651:is called 233:A nonzero 1394:− 1381:− 1257:− 1244:− 1228:⋅ 1021:− 901:onto the 822:⊆ 717:⁡ 610:coprimary 576:⁡ 185:⁡ 93:⁡ 1638:(1970), 1605:(1999), 1568:(1995), 1540:Lam 1999 1528:Lam 1999 1516:Lam 1999 1096:Examples 903:spectrum 815:′ 768:Lam 1999 624:implies 397:-module 308:′ 237:-module 161:radicals 119:assassin 1629:1653294 1596:1322960 782:, then 52:over a 1627:  1617:  1594:  1584:  1073:For a 1007:where 951:is an 868:is an 446:where 393:of an 159:, the 47:module 1474:Notes 691:is a 45:of a 41:, an 1615:ISBN 1582:ISBN 1360:and 1041:and 890:Any 221:and 54:ring 1499:doi 1442:If 1427:If 1101:If 947:If 872:of 866:M' 776:M' 774:If 708:Ass 647:of 612:if 567:Ass 515:of 462:of 389:An 329:of 327:N' 176:Ass 136:In 133:). 125:of 121:or 84:Ass 63:of 37:In 1668:: 1625:MR 1623:, 1613:, 1592:MR 1590:, 1580:, 1572:, 1558:, 1495:13 1493:. 1092:. 614:xm 605:. 551:. 386:. 337:, 225:. 1505:. 1501:: 1469:. 1467:Z 1463:Z 1458:. 1456:M 1452:M 1448:M 1444:R 1429:R 1413:. 1410:) 1405:3 1401:x 1397:3 1389:3 1385:w 1376:3 1372:z 1368:( 1348:) 1343:2 1339:w 1335:+ 1330:2 1326:z 1322:+ 1317:2 1313:y 1309:+ 1304:2 1300:x 1296:( 1276:) 1273:) 1268:3 1264:x 1260:3 1252:3 1248:w 1239:3 1235:z 1231:( 1225:) 1220:2 1216:w 1212:+ 1207:2 1203:z 1199:+ 1194:2 1190:y 1186:+ 1181:2 1177:x 1173:( 1170:( 1167:= 1164:I 1144:] 1141:w 1138:, 1135:z 1132:, 1129:y 1126:, 1123:x 1120:[ 1116:C 1112:= 1109:R 1084:. 1082:M 1078:M 1070:. 1068:R 1051:p 1024:) 1018:( 1015:E 994:) 989:p 983:/ 979:R 976:( 973:E 963:R 949:R 935:. 932:) 929:R 926:( 922:c 919:e 916:p 913:S 874:M 852:. 849:) 846:M 843:( 838:R 833:s 830:s 827:A 819:) 812:M 808:( 803:R 798:s 795:s 792:A 780:M 778:⊆ 746:} 743:P 740:{ 737:= 734:) 731:I 727:/ 723:R 720:( 712:R 695:- 693:P 689:I 685:P 671:N 667:/ 663:M 653:P 649:M 645:N 637:M 633:n 629:M 626:x 622:M 618:m 585:) 582:M 579:( 571:R 556:R 549:M 535:P 531:/ 527:R 517:M 513:m 498:) 495:m 492:( 487:R 482:n 479:n 476:A 464:M 460:P 456:R 452:M 448:N 433:) 430:N 427:( 422:R 417:n 414:n 411:A 399:M 395:R 384:R 369:) 366:N 363:( 358:R 353:n 350:n 347:A 335:N 331:N 312:) 305:N 301:( 296:R 291:n 288:n 285:A 280:= 277:) 274:N 271:( 266:R 261:n 258:n 255:A 239:N 235:R 205:. 202:) 199:J 195:/ 191:R 188:( 180:R 153:J 127:M 105:, 102:) 99:M 96:( 88:R 73:M 65:R 57:R 50:M 34:. 20:)

Index

Associated prime ideal
Primary decomposition § Primary decomposition from associated primes
abstract algebra
module
ring
prime ideal
annihilator
commutative algebra
Lasker–Noether primary decomposition
commutative
Noetherian rings
primary ideals
radicals
prime ideals
Noetherian ring
primary ideal
Lam 1999
essential submodule
finitely generated module
ascending chain condition
uniform module
injective modules
spectrum
Artinian ring
injective hull
Noetherian module
Primary decomposition#Primary decomposition from associated primes
free abelian groups
abelian groups
Communications in Algebra

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