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Talk:Associated bundle

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440:, Princeton University Press: 1950) disappointingly seem to propagate the misconception that associated bundles are some kind of mysterious concept. Now I may have missed some particular subtlety, but my understanding is that (using Steenrod's nomenclature) two bundles are associated if and only if they are associates of the same principal bundle. So I find the very idea of "associated bundles" to be a bit of a non sequitur. I don't mean to say that the article shouldn't exist, but I do believe that it can be clarified extensively. I moved a few of the vague sections into the talk page for now. 84: 74: 53: 510:′. I find this definition to be a bit disingenuous because it already slips the principal bundle in through the back door. But you're basically right. I can see how this definition through "subterfuge" can be more easily understood by someone who isn't yet comfortable with principal bundles. I'll do my best to preserve the spirit, if not the actual letter, of the article. Thanks for sorting me out, 22: 493:
I, for one, find the principal bundle picture more intuitive. (Of course, I've been working with them for some time, so I am indeed already biased.) Perhaps we should compromise. The idea behind associated bundles is just that they have the same structure group and "the same" transition functions
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I admit that I'm not all that familiar with the most general definition of an associated bundle. But in common parlance among my circles, an associated bundle is simply a bundle associated to a principal bundle by means of a
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Is this article only for people who already know how to guess the meaning of obscure and seemingly extremely context-dependent jargon such as these two never-defined-in-this-article labels?
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data for transition on intersections; and then make the obseveration that the same G-valued data gives you many associated bundles. I suppose this page was awaiting proper definition of
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There is a small issue here (you may be right about squeamishness about principal bundles, actually). It's just that for a faithful action of group
482:′. This is no big deal for those who understand it all intuitively, but is the kind of point on which one should have mercy on the new student. 106: 555: 494:(i.e., cocycle) when changing coordinates. (These transition functions are only the same in the sense that they are given as the same 97: 58: 444: 33: 21: 559: 379: 332: 283: 158: 483: 191: 39: 83: 185: 177: 105:
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89: 73: 52: 540: 530: 511: 441: 526: 329:, and want to create the associated bundle with complex vector space fibers, we should take 306: 287: 529:. (This is a self-note, as well as an indication of my intentions to other Wikipedists.) 282:-bundle: this is trite for bundles, but looking at their sections it is essentially the 312: 265: 245: 225: 205: 571: 433: 302: 181: 157:
This article does not actually define what the associated bundle construction is.
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When I get the chance, I intend to export reduction of the structure group to
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construction, in a different light. This does suggest there will be some
466:-bundle is reversible; therefore you have the choice of going from an 426: 15: 498:-valued functions on the coordinate overlaps.) Of course, 427:
Can't we just say what it is without all of the subterfuge?
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Export reduction of structure group to Principal Bundles
382: 335: 315: 268: 248: 228: 208: 101:, a collaborative effort to improve the coverage of 415: 368: 321: 274: 254: 234: 214: 539:Once I've done that, the rest appears passable. 309:, for example). If we have a real vector bundle 8: 301:One application is to complexifying a real 202:One very useful case is to take a subgroup 19: 502:may act in different ways on the fibre of 47: 406: 405: 396: 381: 359: 358: 349: 334: 314: 267: 247: 227: 207: 164:That's true enough: you need to take an 49: 416:{\displaystyle G=GL_{n}(\mathbb {C} )} 369:{\displaystyle H=GL_{n}(\mathbb {R} )} 7: 95:This article is within the scope of 38:It is of interest to the following 436:. Earlier definitions (Steenrod, 297:Complexifying a real vector bundle 14: 583:Mid-priority mathematics articles 115:Knowledge:WikiProject Mathematics 578:Start-Class mathematics articles 478:-bundle and then 'reversing' to 118:Template:WikiProject Mathematics 82: 72: 51: 20: 135:This article has been rated as 474:′-bundle directly, or via the 410: 402: 363: 355: 1: 544:09:00, 13 November 2005 (UTC) 534:08:07, 13 November 2005 (UTC) 515:16:42, 13 November 2005 (UTC) 487:09:14, 13 November 2005 (UTC) 445:07:53, 13 November 2005 (UTC) 438:The topology of fibre bundles 109:and see a list of open tasks. 599: 262:-bundle has an associated 564:01:38, 15 July 2022 (UTC) 134: 67: 46: 194:16:08, 4 Dec 2004 (UTC) 161:07:02, 4 Dec 2004 (UTC) 141:project's priority scale 550:What are "F1" and "F2"? 305:(as required to define 198:Relation with subgroups 98:WikiProject Mathematics 417: 370: 323: 284:induced representation 276: 256: 236: 216: 28:This article is rated 418: 371: 324: 277: 257: 237: 217: 380: 333: 313: 266: 246: 226: 206: 121:mathematics articles 423:in that schematic. 186:transition function 178:transition function 176:and talk about the 413: 366: 319: 307:Pontryagin classes 272: 252: 232: 212: 90:Mathematics portal 34:content assessment 527:principal bundles 458:, going from the 322:{\displaystyle V} 275:{\displaystyle G} 255:{\displaystyle H} 235:{\displaystyle G} 215:{\displaystyle H} 155: 154: 151: 150: 147: 146: 590: 484:Charles Matthews 422: 420: 419: 414: 409: 401: 400: 375: 373: 372: 367: 362: 354: 353: 328: 326: 325: 320: 288:adjoint functors 281: 279: 278: 273: 261: 259: 258: 253: 241: 239: 238: 233: 221: 219: 218: 213: 192:Charles Matthews 123: 122: 119: 116: 113: 92: 87: 86: 76: 69: 68: 63: 55: 48: 31: 25: 24: 16: 598: 597: 593: 592: 591: 589: 588: 587: 568: 567: 552: 523: 462:-bundle to the 429: 392: 378: 377: 345: 331: 330: 311: 310: 299: 264: 263: 244: 243: 224: 223: 204: 203: 200: 175: 159:128.175.240.205 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 596: 594: 586: 585: 580: 570: 569: 551: 548: 547: 546: 522: 519: 518: 517: 490: 489: 470:-bundle to an 428: 425: 412: 408: 404: 399: 395: 391: 388: 385: 365: 361: 357: 352: 348: 344: 341: 338: 318: 298: 295: 293: 271: 251: 231: 211: 199: 196: 171: 153: 152: 149: 148: 145: 144: 133: 127: 126: 124: 107:the discussion 94: 93: 77: 65: 64: 56: 44: 43: 37: 26: 13: 10: 9: 6: 4: 3: 2: 595: 584: 581: 579: 576: 575: 573: 566: 565: 561: 557: 556:24.56.246.116 549: 545: 542: 538: 537: 536: 535: 532: 528: 520: 516: 513: 509: 505: 501: 497: 492: 491: 488: 485: 481: 477: 473: 469: 465: 461: 457: 453: 449: 448: 447: 446: 443: 439: 435: 434:fibre product 424: 397: 393: 389: 386: 383: 350: 346: 342: 339: 336: 316: 308: 304: 303:vector bundle 296: 294: 291: 289: 285: 269: 249: 229: 209: 197: 195: 193: 189: 187: 183: 179: 174: 170: 167: 162: 160: 142: 138: 132: 129: 128: 125: 108: 104: 100: 99: 91: 85: 80: 78: 75: 71: 70: 66: 60: 57: 54: 50: 45: 41: 35: 27: 23: 18: 17: 553: 541:Silly rabbit 531:Silly rabbit 524: 512:Silly rabbit 507: 506:and that of 503: 499: 495: 479: 475: 471: 467: 463: 459: 455: 451: 442:Silly rabbit 437: 430: 300: 292: 201: 190: 182:fiber bundle 172: 168: 163: 156: 137:Mid-priority 136: 96: 62:Mid‑priority 40:WikiProjects 112:Mathematics 103:mathematics 59:Mathematics 30:Start-class 572:Categories 290:involved. 242:. Then an 166:open cover 454:on fiber 139:on the 184:, and 36:scale. 560:talk 376:and 222:of 131:Mid 574:: 562:) 188:. 558:( 508:F 504:F 500:G 496:G 480:F 476:G 472:F 468:F 464:G 460:F 456:F 452:G 411:) 407:C 403:( 398:n 394:L 390:G 387:= 384:G 364:) 360:R 356:( 351:n 347:L 343:G 340:= 337:H 317:V 270:G 250:H 230:G 210:H 173:i 169:U 143:. 42::

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content assessment
WikiProjects
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Mathematics
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Mathematics portal
WikiProject Mathematics
mathematics
the discussion
Mid
project's priority scale
128.175.240.205
open cover
transition function
fiber bundle
transition function
Charles Matthews
induced representation
adjoint functors
vector bundle
Pontryagin classes
fibre product
Silly rabbit
07:53, 13 November 2005 (UTC)
Charles Matthews
09:14, 13 November 2005 (UTC)
Silly rabbit
16:42, 13 November 2005 (UTC)

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