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Recurrent tensor

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with regards to properties of parallel transport of vectors and their length. By demanding that a manifold have an affine parallel transport in such a way that the manifold is locally an
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Additionally, he claimed that the manifold must have a particular parallel transport in which the ratio of two transported vectors is fixed. The corresponding connection
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a metric space. In this sense, Weyl was not just referring to one metric but to the conformal structure defined by
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is called a Weyl structure, which more generally is defined as a map with property
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Recurrent Tensors on a Linearly Connected Differentiable Manifold
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is a parallel and therefore recurrent tensor with respect to its
1426:, The Quarterly Journal of Mathematics 1950, Oxford Univ. Press 1417:, The Quarterly Journal of Mathematics 1949, Oxford Univ. Press 1277:
One more example of a recurrent tensor is the curvature tensor
118: 63: 22: 690:{\displaystyle T^{\nabla }(X,Y)=\nabla _{X}Y-\nabla _{Y}X-=0} 1332: 1316: 1286: 1435:, Transactions of the American Mathematical Society 1961, 149: 139: 84: 996:{\displaystyle \varphi \rightarrow \varphi -d\lambda } 792:. Such a metric is a recurrent tensor with respect to 1310: 1283: 1211: 1188: 1162: 1104: 1063: 1009: 974: 954: 918: 895: 875: 855: 823: 798: 778: 735: 707: 605: 562: 521: 494: 465: 420: 377: 351: 319: 260: 212: 1145:{\displaystyle F(e^{\lambda }g):=\varphi -d\lambda } 79:
may be too technical for most readers to understand
1423:On symmetric recurrent tensors of the second order 1414:On parallel fields of partially null vector spaces 1339: 1293: 1260: 1194: 1174: 1144: 1087: 1049: 995: 960: 940: 901: 881: 861: 841: 817:. As a result, Weyl called the resulting manifold 809: 784: 761: 726:which induces such a parallel transport satisfies 718: 689: 568: 542: 500: 480: 445: 395: 357: 334: 285: 218: 1454:Recent developments in pseudo-Riemannian geometry 1403:Weyl, H. (1918). "Gravitation und Elektrizität". 1261:{\displaystyle F(e^{\lambda }g)=F(g)-d\lambda } 1050:{\displaystyle F:\rightarrow \Lambda ^{1}(M)} 8: 286:{\displaystyle \nabla T=\omega \otimes T.\,} 1405:Sitzungsberichte der Preuss. Akad. D. Wiss. 762:{\displaystyle \nabla 'g=\varphi \otimes g} 584:Another example appears in connection with 310:are parallel tensors which are defined by 57:Learn how and when to remove these messages 941:{\displaystyle g\rightarrow e^{\lambda }g} 508:is a recurrent non-null vector field on a 1331: 1330: 1315: 1314: 1309: 1285: 1284: 1282: 1222: 1210: 1187: 1161: 1115: 1103: 1062: 1032: 1008: 973: 953: 929: 917: 894: 874: 854: 822: 797: 777: 734: 706: 654: 638: 610: 604: 561: 543:{\displaystyle \nabla X=\omega \otimes X} 520: 493: 464: 425: 419: 376: 350: 318: 282: 259: 211: 179:Learn how and when to remove this message 107:Learn how and when to remove this message 91:, without removing the technical details. 1444:, Journal of Differential Geometry 1970 1356: 456:and its property to be torsion-free. 89:make it understandable to non-experts 7: 1301:on a recurrent spacetime, for which 912:Under the conformal transformation 1311: 1029: 856: 800: 737: 709: 651: 635: 611: 522: 466: 422: 352: 320: 261: 213: 14: 1456:. European Mathematical Society. 38:This article has multiple issues. 345:with respect to some connection 123: 68: 27: 1003:. This induces a canonical map 446:{\displaystyle \nabla ^{LC}g=0} 46:or discuss these issues on the 1294:{\displaystyle {\mathcal {R}}} 1246: 1240: 1231: 1215: 1169: 1163: 1124: 1108: 1082: 1079: 1073: 1064: 1044: 1038: 1025: 1022: 1016: 978: 922: 836: 824: 678: 666: 628: 616: 390: 378: 1: 1182:is the conformal structure. 1502: 510:pseudo-Riemannian manifold 481:{\displaystyle \nabla X=0} 370:pseudo-Riemannian manifold 335:{\displaystyle \nabla A=0} 15: 306:An example for recurrent 1363:Alekseevsky, Baum (2008) 961:{\displaystyle \varphi } 810:{\displaystyle \nabla '} 785:{\displaystyle \varphi } 719:{\displaystyle \nabla '} 459:Parallel vector fields ( 862:{\displaystyle \nabla } 849:with affine connection 569:{\displaystyle \omega } 411:, which is defined via 358:{\displaystyle \nabla } 219:{\displaystyle \nabla } 138:, as no other articles 1341: 1295: 1262: 1196: 1176: 1146: 1089: 1051: 997: 962: 942: 903: 883: 863: 843: 811: 786: 763: 720: 691: 570: 544: 502: 482: 447: 409:Levi-Civita connection 397: 359: 336: 287: 220: 1342: 1296: 1263: 1197: 1177: 1147: 1090: 1052: 998: 963: 943: 904: 884: 869:and recurrent metric 864: 844: 842:{\displaystyle (M,g)} 812: 787: 764: 721: 692: 571: 545: 503: 483: 448: 398: 396:{\displaystyle (M,g)} 360: 337: 288: 240:for which there is a 221: 1308: 1281: 1209: 1186: 1160: 1102: 1088:{\displaystyle (M,)} 1061: 1007: 972: 952: 916: 893: 873: 853: 821: 796: 776: 733: 705: 603: 560: 519: 492: 463: 418: 375: 349: 317: 258: 210: 203:, with respect to a 1481:Riemannian geometry 1273:Recurrent spacetime 18:Riemannian geometry 1337: 1291: 1258: 1192: 1172: 1142: 1085: 1047: 993: 958: 938: 899: 879: 859: 839: 807: 782: 772:for some one-form 759: 716: 687: 566: 540: 498: 478: 443: 393: 355: 332: 283: 216: 157:for suggestions. 147:to this page from 1463:978-3-03719-051-7 1448:D.V. Alekseevky; 1195:{\displaystyle F} 902:{\displaystyle g} 882:{\displaystyle g} 501:{\displaystyle X} 189: 188: 181: 171: 170: 117: 116: 109: 61: 1493: 1467: 1421:E.M. Patterson: 1408: 1391: 1388: 1382: 1379: 1373: 1370: 1364: 1361: 1346: 1344: 1343: 1338: 1336: 1335: 1320: 1319: 1300: 1298: 1297: 1292: 1290: 1289: 1267: 1265: 1264: 1259: 1227: 1226: 1201: 1199: 1198: 1193: 1181: 1179: 1178: 1175:{\displaystyle } 1173: 1151: 1149: 1148: 1143: 1120: 1119: 1094: 1092: 1091: 1086: 1056: 1054: 1053: 1048: 1037: 1036: 1002: 1000: 999: 994: 967: 965: 964: 959: 947: 945: 944: 939: 934: 933: 908: 906: 905: 900: 888: 886: 885: 880: 868: 866: 865: 860: 848: 846: 845: 840: 816: 814: 813: 808: 806: 791: 789: 788: 783: 768: 766: 765: 760: 743: 725: 723: 722: 717: 715: 696: 694: 693: 688: 659: 658: 643: 642: 615: 614: 575: 573: 572: 567: 553:for some closed 549: 547: 546: 541: 507: 505: 504: 499: 487: 485: 484: 479: 452: 450: 449: 444: 433: 432: 403:then the metric 402: 400: 399: 394: 364: 362: 361: 356: 341: 339: 338: 333: 302:Parallel Tensors 292: 290: 289: 284: 225: 223: 222: 217: 201:recurrent tensor 184: 177: 166: 163: 152: 150:related articles 127: 119: 112: 105: 101: 98: 92: 72: 71: 64: 53: 31: 30: 23: 1501: 1500: 1496: 1495: 1494: 1492: 1491: 1490: 1471: 1470: 1464: 1447: 1402: 1399: 1394: 1389: 1385: 1380: 1376: 1371: 1367: 1362: 1358: 1354: 1306: 1305: 1279: 1278: 1275: 1218: 1207: 1206: 1184: 1183: 1158: 1157: 1111: 1100: 1099: 1059: 1058: 1028: 1005: 1004: 970: 969: 950: 949: 925: 914: 913: 891: 890: 871: 870: 851: 850: 819: 818: 799: 794: 793: 774: 773: 736: 731: 730: 708: 703: 702: 650: 634: 606: 601: 600: 586:Weyl structures 582: 558: 557: 517: 516: 490: 489: 461: 460: 421: 416: 415: 373: 372: 347: 346: 315: 314: 304: 299: 256: 255: 208: 207: 185: 174: 173: 172: 167: 161: 158: 148: 145:introduce links 128: 113: 102: 96: 93: 85:help improve it 82: 73: 69: 32: 28: 21: 12: 11: 5: 1499: 1497: 1489: 1488: 1483: 1473: 1472: 1469: 1468: 1462: 1445: 1441:Weyl Manifolds 1439:G.B. Folland: 1436: 1427: 1418: 1409: 1398: 1395: 1393: 1392: 1383: 1381:Folland (1970) 1374: 1365: 1355: 1353: 1350: 1349: 1348: 1334: 1329: 1326: 1323: 1318: 1313: 1288: 1274: 1271: 1270: 1269: 1257: 1254: 1251: 1248: 1245: 1242: 1239: 1236: 1233: 1230: 1225: 1221: 1217: 1214: 1191: 1171: 1168: 1165: 1154: 1153: 1141: 1138: 1135: 1132: 1129: 1126: 1123: 1118: 1114: 1110: 1107: 1084: 1081: 1078: 1075: 1072: 1069: 1066: 1046: 1043: 1040: 1035: 1031: 1027: 1024: 1021: 1018: 1015: 1012: 992: 989: 986: 983: 980: 977: 968:transforms as 957: 937: 932: 928: 924: 921: 898: 878: 858: 838: 835: 832: 829: 826: 805: 802: 781: 770: 769: 758: 755: 752: 749: 746: 742: 739: 714: 711: 699: 698: 686: 683: 680: 677: 674: 671: 668: 665: 662: 657: 653: 649: 646: 641: 637: 633: 630: 627: 624: 621: 618: 613: 609: 581: 578: 565: 551: 550: 539: 536: 533: 530: 527: 524: 497: 477: 474: 471: 468: 454: 453: 442: 439: 436: 431: 428: 424: 392: 389: 386: 383: 380: 354: 343: 342: 331: 328: 325: 322: 303: 300: 298: 295: 294: 293: 281: 278: 275: 272: 269: 266: 263: 215: 187: 186: 169: 168: 155:Find link tool 131: 129: 122: 115: 114: 76: 74: 67: 62: 36: 35: 33: 26: 16:For more, see 13: 10: 9: 6: 4: 3: 2: 1498: 1487: 1484: 1482: 1479: 1478: 1476: 1465: 1459: 1455: 1451: 1446: 1443: 1442: 1437: 1434: 1433: 1428: 1425: 1424: 1419: 1416: 1415: 1412:A.G. Walker: 1410: 1406: 1401: 1400: 1396: 1390:Walker (1948) 1387: 1384: 1378: 1375: 1369: 1366: 1360: 1357: 1351: 1327: 1324: 1321: 1304: 1303: 1302: 1272: 1255: 1252: 1249: 1243: 1237: 1234: 1228: 1223: 1219: 1212: 1205: 1204: 1203: 1189: 1166: 1139: 1136: 1133: 1130: 1127: 1121: 1116: 1112: 1105: 1098: 1097: 1096: 1076: 1070: 1067: 1041: 1033: 1019: 1013: 1010: 990: 987: 984: 981: 975: 955: 935: 930: 926: 919: 910: 896: 876: 833: 830: 827: 803: 779: 756: 753: 750: 747: 744: 740: 729: 728: 727: 712: 684: 681: 675: 672: 669: 663: 660: 655: 647: 644: 639: 631: 625: 622: 619: 607: 599: 598: 597: 595: 591: 587: 579: 577: 563: 556: 537: 534: 531: 528: 525: 515: 514: 513: 511: 495: 475: 472: 469: 457: 440: 437: 434: 429: 426: 414: 413: 412: 410: 406: 387: 384: 381: 371: 368:If we take a 366: 329: 326: 323: 313: 312: 311: 309: 301: 296: 279: 276: 273: 270: 267: 264: 254: 253: 252: 250: 246: 243: 239: 236: 232: 229: 206: 202: 198: 194: 183: 180: 165: 156: 151: 146: 142: 141: 137: 132:This article 130: 126: 121: 120: 111: 108: 100: 90: 86: 80: 77:This article 75: 66: 65: 60: 58: 51: 50: 45: 44: 39: 34: 25: 24: 19: 1453: 1440: 1431: 1430:J.-C. Wong: 1422: 1413: 1404: 1386: 1377: 1368: 1359: 1276: 1155: 911: 771: 700: 594:affine space 590:Hermann Weyl 583: 580:Metric space 552: 458: 455: 404: 367: 344: 305: 248: 244: 237: 230: 200: 190: 175: 159: 133: 103: 97:October 2021 94: 78: 54: 47: 41: 40:Please help 37: 1372:Weyl (1918) 1095:defined by 948:, the form 512:satisfying 193:mathematics 1475:Categories 1397:Literature 1352:References 251:such that 205:connection 153:; try the 140:link to it 43:improve it 1328:⊗ 1325:ω 1312:∇ 1256:λ 1250:− 1224:λ 1140:λ 1134:− 1131:φ 1117:λ 1030:Λ 1026:→ 991:λ 985:− 982:φ 979:→ 976:φ 956:φ 931:λ 923:→ 857:∇ 801:∇ 780:φ 754:⊗ 751:φ 738:∇ 710:∇ 664:− 652:∇ 648:− 636:∇ 612:∇ 564:ω 535:⊗ 532:ω 523:∇ 467:∇ 423:∇ 353:∇ 321:∇ 274:⊗ 271:ω 262:∇ 214:∇ 162:July 2021 143:. Please 49:talk page 1452:(2008). 804:′ 741:′ 713:′ 555:one-form 297:Examples 242:one-form 228:manifold 1486:Tensors 1450:H. Baum 308:tensors 233:, is a 197:physics 83:Please 1460:  1407:: 465. 1156:where 235:tensor 136:orphan 134:is an 226:on a 1458:ISBN 199:, a 195:and 1057:on 247:on 191:In 87:to 1477:: 1128::= 909:. 365:. 52:. 1466:. 1347:. 1333:R 1322:= 1317:R 1287:R 1268:. 1253:d 1247:) 1244:g 1241:( 1238:F 1235:= 1232:) 1229:g 1220:e 1216:( 1213:F 1190:F 1170:] 1167:g 1164:[ 1152:, 1137:d 1125:) 1122:g 1113:e 1109:( 1106:F 1083:) 1080:] 1077:g 1074:[ 1071:, 1068:M 1065:( 1045:) 1042:M 1039:( 1034:1 1023:] 1020:g 1017:[ 1014:: 1011:F 988:d 936:g 927:e 920:g 897:g 877:g 837:) 834:g 831:, 828:M 825:( 757:g 748:= 745:g 697:. 685:0 682:= 679:] 676:Y 673:, 670:X 667:[ 661:X 656:Y 645:Y 640:X 632:= 629:) 626:Y 623:, 620:X 617:( 608:T 538:X 529:= 526:X 496:X 476:0 473:= 470:X 441:0 438:= 435:g 430:C 427:L 405:g 391:) 388:g 385:, 382:M 379:( 330:0 327:= 324:A 280:. 277:T 268:= 265:T 249:M 245:ω 238:T 231:M 182:) 176:( 164:) 160:( 110:) 104:( 99:) 95:( 81:. 59:) 55:( 20:.

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Riemannian geometry
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mathematics
physics
connection
manifold
tensor
one-form
tensors
pseudo-Riemannian manifold
Levi-Civita connection
pseudo-Riemannian manifold
one-form
Weyl structures
Hermann Weyl
affine space
A.G. Walker: On parallel fields of partially null vector spaces
E.M. Patterson: On symmetric recurrent tensors of the second order

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