Knowledge

Assouad–Nagata dimension

Source 📝

456: 387: 497: 287: 408: 332: 269: 526: 406:
Le Donne, Enrico; Rajala, Tapio (2015). "Assouad dimension, Nagata dimension, and uniformly close metric tangents".
285:
Lang, Urs; Schlichenmaier, Thilo (2005). "Nagata dimension, quasisymmetric embeddings, and Lipschitz extensions".
490: 471: 148: 483: 521: 516: 352: 40:
in 1958 and reformulated by Patrice Assouad in 1982, who introduced the now-usual definition.
463: 326: 228:-dimensional upon zooming out as far as you need. To have Assouad–Nagata dimension at most 382: 209: 8: 435: 417: 314: 296: 318: 265: 240: 439: 427: 361: 306: 93: 467: 37: 431: 510: 366: 347: 310: 239:
The Nagata dimension of a metric space is always less than or equal to its
33: 17: 147:
This definition can be rephrased to make it more similar to that of the
236:-dimensional at every possible scale, in a uniform way across scales. 301: 220:-dimensional at microscopic scales, and asymptotic dimension at most 29: 208:
Compare the similar definitions of Lebesgue covering dimension and
422: 114:
means that the diameter of each set of the covering is bounded by
455: 203: 259: 212:. A space has Lebesgue covering dimension at most 388:Comptes Rendus de l'Académie des Sciences, Série I 284: 151:. The Assouad–Nagata dimension of a metric space 508: 260:Cobzaş, Ş.; Miculescu, R.; Nicolae, A. (2019). 405: 491: 348:"Note on dimension theory for metric spaces" 264:. Cham, Switzerland: Springer. p. 308. 498: 484: 288:International Mathematics Research Notices 204:Relationship to other notions of dimension 140:has a non-empty intersection with at most 421: 365: 300: 380: 509: 409:Indiana University Mathematics Journal 345: 450: 64:is defined as the smallest integer 13: 331:: CS1 maint: unflagged free DOI ( 167:for which there exists a constant 68:for which there exists a constant 14: 538: 454: 381:Assouad, P. (January 4, 1982). 399: 374: 339: 278: 253: 232:, a space has to look at most 1: 246: 189:-balls has a refinement with 43: 470:. You can help Knowledge by 7: 527:Mathematical analysis stubs 383:"Sur la distance de Nagata" 149:Lebesgue covering dimension 125:is the infimum of integers 10: 543: 449: 432:10.1512/iumj.2015.64.5469 144:members of the covering. 132:such that each subset of 163:is the smallest integer 50:Assouad–Nagata dimension 22:Assouad–Nagata dimension 367:10.4064/fm-45-1-143-181 353:Fundamenta Mathematicae 466:–related article is a 311:10.1155/IMRN.2005.3625 193:-multiplicity at most 136:with diameter at most 100:-multiplicity at most 464:mathematical analysis 224:if it looks at most 210:asymptotic dimension 174:such that for every 346:Nagata, J. (1958). 262:Lipschitz functions 181:, the covering of 75:such that for all 52:of a metric space 24:(sometimes simply 479: 478: 271:978-3-030-16488-1 241:Assouad dimension 216:if it is at most 28:) is a notion of 534: 522:Dimension theory 500: 493: 486: 458: 451: 444: 443: 425: 403: 397: 396: 378: 372: 371: 369: 343: 337: 336: 330: 322: 304: 282: 276: 275: 257: 235: 231: 227: 223: 219: 215: 199: 192: 188: 184: 180: 173: 166: 162: 143: 139: 135: 131: 122: 117: 111: 106: 99: 91: 85: 81: 74: 67: 63: 36:, introduced by 26:Nagata dimension 542: 541: 537: 536: 535: 533: 532: 531: 517:Metric geometry 507: 506: 505: 504: 448: 447: 404: 400: 379: 375: 344: 340: 324: 323: 283: 279: 272: 258: 254: 249: 233: 229: 225: 221: 217: 213: 206: 194: 190: 186: 182: 175: 168: 164: 152: 141: 137: 133: 126: 120: 115: 109: 101: 97: 87: 83: 76: 69: 65: 53: 46: 12: 11: 5: 540: 530: 529: 524: 519: 503: 502: 495: 488: 480: 477: 476: 459: 446: 445: 398: 373: 338: 277: 270: 251: 250: 248: 245: 205: 202: 45: 42: 38:Jun-iti Nagata 9: 6: 4: 3: 2: 539: 528: 525: 523: 520: 518: 515: 514: 512: 501: 496: 494: 489: 487: 482: 481: 475: 473: 469: 465: 460: 457: 453: 452: 441: 437: 433: 429: 424: 419: 415: 411: 410: 402: 394: 391:(in French). 390: 389: 384: 377: 368: 363: 359: 355: 354: 349: 342: 334: 328: 320: 316: 312: 308: 303: 298: 294: 290: 289: 281: 273: 267: 263: 256: 252: 244: 242: 237: 211: 201: 197: 178: 171: 160: 156: 150: 145: 129: 124: 123:-multiplicity 113: 104: 95: 90: 79: 72: 61: 57: 51: 41: 39: 35: 34:metric spaces 31: 27: 23: 19: 472:expanding it 461: 416:(1): 21–54. 413: 407: 401: 392: 386: 376: 357: 351: 341: 327:cite journal 302:math/0410048 295:(58): 3625. 292: 286: 280: 261: 255: 238: 207: 195: 176: 169: 158: 154: 146: 127: 119: 108: 102: 88: 77: 70: 59: 55: 49: 47: 25: 21: 15: 395:(1): 31–34. 360:: 143–181. 18:mathematics 511:Categories 247:References 82:the space 44:Definition 423:1306.5859 319:119683379 92:-bounded 30:dimension 440:55039643 112:-bounded 94:covering 107:. Here 438:  317:  268:  179:> 0 172:> 0 118:, and 86:has a 80:> 0 73:> 0 20:, the 462:This 436:S2CID 418:arXiv 315:S2CID 297:arXiv 96:with 468:stub 333:link 293:2005 266:ISBN 48:The 32:for 428:doi 393:294 362:doi 307:doi 198:+ 1 185:by 130:≥ 0 105:+ 1 16:In 513:: 434:. 426:. 414:64 412:. 385:. 358:45 356:. 350:. 329:}} 325:{{ 313:. 305:. 291:. 243:. 200:. 191:cr 157:, 116:Cr 110:Cr 89:Cr 58:, 499:e 492:t 485:v 474:. 442:. 430:: 420:: 370:. 364:: 335:) 321:. 309:: 299:: 274:. 234:n 230:n 226:n 222:n 218:n 214:n 196:n 187:r 183:X 177:r 170:c 165:n 161:) 159:d 155:X 153:( 142:k 138:r 134:X 128:k 121:r 103:n 98:r 84:X 78:r 71:C 66:n 62:) 60:d 56:X 54:(

Index

mathematics
dimension
metric spaces
Jun-iti Nagata
covering
Lebesgue covering dimension
asymptotic dimension
Assouad dimension
ISBN
978-3-030-16488-1
International Mathematics Research Notices
arXiv
math/0410048
doi
10.1155/IMRN.2005.3625
S2CID
119683379
cite journal
link
"Note on dimension theory for metric spaces"
Fundamenta Mathematicae
doi
10.4064/fm-45-1-143-181
"Sur la distance de Nagata"
Comptes Rendus de l'Académie des Sciences, Série I
Indiana University Mathematics Journal
arXiv
1306.5859
doi
10.1512/iumj.2015.64.5469

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