Knowledge

Talk:Tensor bundle

Source 📝

193:) representation are a more suitable topic for an encyclopedia article (tensors of type ρ). Unfortunately, there seems to be little agreement as to where one draws the line. For instance, must all tensor bundles be associated bundles of the tangent bundle? Or is one allowing a more general principal bundle besides the frame bundle? The former requirement is clearly the case in most uses of the term "tensor" in physics and analysis, where the tensor intertwines the action of diffeomorphisms with a linear transformation of the fibre. To make matters worse, determinantal representations of GL( 84: 74: 53: 22: 166:, where bla would be something like (r,s). Other definitions were much more general than the one given in this article, like in the book "Heat kernels and Dirac operators" where a tensor bundle is defined to be any vector bundle arising from a representation of GL(n). 221:
I see. I don't see any reason to not mention this panoply of definitions, but one thing to keep in mind is the fact that various articles link to this page, and they don't all refer to the current definition in here, e.g.
140: 197:) are often ruled out (and called "density bundles" rather than "tensor bundles", and tensor products thereof are termed "tensor density bundles" or similar). 344: 130: 339: 310:
Shouldn't the tensor bundle be defined as the tensor products of the tangent bundle and the cotangent bundles instead of the direct sum of those?
106: 97: 58: 265: 33: 318: 284: 247: 21: 312: 204: 39: 83: 253: 288: 105:
on Knowledge. If you would like to participate, please visit the project page, where you can join
89: 73: 52: 198: 296: 261: 171: 243: 186: 283:
While it is certainly true that doing calculus for arbitrary tensor fields requires a
333: 223: 291:
of an antisymmetric differentiable tensor field is well defined even without one.
292: 257: 185:
tensor bundle", which is common parlance for the bundle whose fibre is the full
167: 102: 162:
Upon searching google books, I found various definitions. Many of them defined
79: 246:
wants the tensor bundle to be the tensor algebra of any vector bundle, and
189:. However, tensors arising as associated bundles by the pushout of a GL( 325: 300: 269: 212: 175: 15: 226:
wants tensor bundle to refer to a vector bundle of the form
101:, a collaborative effort to improve the coverage of 8: 47: 19: 293:Shmuel (Seymour J.) Metz Username:Chatul 49: 181:The article seems to be referring to " 7: 95:This article is within the scope of 38:It is of interest to the following 14: 345:Low-priority mathematics articles 115:Knowledge:WikiProject Mathematics 250:likes the definition as it is. 118:Template:WikiProject Mathematics 82: 72: 51: 20: 340:Stub-Class mathematics articles 135:This article has been rated as 1: 109:and see a list of open tasks. 361: 301:15:09, 20 March 2014 (UTC) 270:17:39, 2 August 2008 (UTC) 213:17:29, 2 August 2008 (UTC) 176:16:05, 2 August 2008 (UTC) 326:03:22, 24 June 2014 (UTC) 164:tensor bundle of type bla 134: 67: 46: 141:project's priority scale 248:Differentiable manifold 98:WikiProject Mathematics 28:This article is rated 121:mathematics articles 289:exterior derivative 90:Mathematics portal 34:content assessment 272: 256:comment added by 155: 154: 151: 150: 147: 146: 352: 321: 315: 251: 209: 208: 201: 158:Is this correct? 123: 122: 119: 116: 113: 92: 87: 86: 76: 69: 68: 63: 55: 48: 31: 25: 24: 16: 360: 359: 355: 354: 353: 351: 350: 349: 330: 329: 319: 314:Pratyush Sarkar 313: 308: 306:Why Direct Sum? 281: 206: 205: 199: 160: 120: 117: 114: 111: 110: 88: 81: 61: 32:on Knowledge's 29: 12: 11: 5: 358: 356: 348: 347: 342: 332: 331: 307: 304: 280: 277: 276: 275: 274: 273: 244:Algebra bundle 216: 215: 187:tensor algebra 159: 156: 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: 357: 346: 343: 341: 338: 337: 335: 328: 327: 324: 322: 316: 305: 303: 302: 298: 294: 290: 286: 278: 271: 267: 263: 259: 255: 249: 245: 241: 237: 233: 229: 225: 220: 219: 218: 217: 214: 210: 202: 196: 192: 188: 184: 180: 179: 178: 177: 173: 169: 165: 157: 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: 311: 309: 282: 239: 235: 231: 227: 224:Tensor field 200:siℓℓy rabbit 194: 190: 182: 163: 161: 137:Low-priority 136: 96: 62:Low‑priority 40:WikiProjects 252:—Preceding 112:Mathematics 103:mathematics 59:Mathematics 334:Categories 285:connection 30:Stub-class 279:Calculus? 266:contribs 254:unsigned 139:on the 287:, the 258:RobHar 168:RobHar 36:scale. 320:talk 297:talk 262:talk 234:) ⊗ 207:talk 172:talk 242:), 183:the 131:Low 336:: 299:) 268:) 264:• 238:*( 211:) 174:) 323:) 317:( 295:( 260:( 240:M 236:T 232:M 230:( 228:T 203:( 195:n 191:n 170:( 143:. 42::

Index


content assessment
WikiProjects
WikiProject icon
Mathematics
WikiProject icon
icon
Mathematics portal
WikiProject Mathematics
mathematics
the discussion
Low
project's priority scale
RobHar
talk
16:05, 2 August 2008 (UTC)
tensor algebra
siℓℓy rabbit
talk
17:29, 2 August 2008 (UTC)
Tensor field
Algebra bundle
Differentiable manifold
unsigned
RobHar
talk
contribs
17:39, 2 August 2008 (UTC)
connection
exterior derivative

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.