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Willmore conjecture

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20: 423:. Martin Schmidt claimed a proof in 2002, but it was not accepted for publication in any peer-reviewed mathematical journal (although it did not contain a proof of the Willmore conjecture, he proved some other important conjectures in it). Prior to the proof of Marques and Neves, the Willmore conjecture had already been proved for many special cases, such as 242: 390: 555:
Li, Peter; Yau, Shing Tung (1982). "A new conformal invariant and its applications to the Willmore conjecture and the first eigenvalue of compact surfaces".
664: 654: 420: 533: 537: 317:) for tori with various symmetries led Willmore to propose in 1965 the following conjecture, which now bears his name 557: 412: 185: 67: 613:
Langer, Joel; Singer, David (1984). "Curves in the hyperbolic plane and mean curvature of tori in 3-space".
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Marques, Fernando C.; Neves, André (2014). "Min-max theory and the Willmore conjecture".
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Analele Ştiinţifice ale Universităţii "Al. I. Cuza" din Iaşi, Secţiunea I a Matematică
648: 112: 108: 60: 63: 482: 45: 626: 570: 286:) for a few examples suggests that there should be a better bound than 57: 598: 267: 473: 428: 53: 18: 592:
Schmidt, Martin U. (2002). "A proof of the Willmore conjecture".
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proved the conjecture in the non-embedded case, showing that if
16:
Lower bound on the integrated squared mean curvature of a torus
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It is not hard to prove that the Willmore energy satisfies
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The torus with minimal Willmore energy, with major radius
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Willmore, Thomas J. (1965). "Note on embedded surfaces".
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proved the conjecture in the embedded case, using the
359: 188: 309:) > 0. In particular, calculation of 384: 236: 421:Almgren–Pitts min-max theory of minimal surfaces 615:The Bulletin of the London Mathematical Society 392:is an immersion of a compact surface, which is 74:was announced in 2012 and published in 2014. 8: 597: 472: 376: 358: 224: 218: 208: 187: 66:, who conjectured it in 1965. A proof by 529: 527: 237:{\displaystyle W(M)=\int _{M}H^{2}\,dA.} 452: 450: 448: 444: 164:at each point). In this notation, the 7: 385:{\displaystyle f:\Sigma \to S^{3}} 366: 14: 665:Theorems in differential geometry 655:Conjectures that have been proved 321:For every smooth immersed torus 427:(by Willmore himself), and for 369: 198: 192: 1: 538:Math Finds the Best Doughnut 483:10.4007/annals.2014.179.2.6 681: 435:(by Langer & Singer). 81: 558:Inventiones Mathematicae 56:. It is named after the 386: 238: 33: 627:10.1112/blms/16.5.531 460:Annals of Mathematics 413:Fernando Codá Marques 387: 266:is an embedded round 239: 68:Fernando Codá Marques 38:differential geometry 22: 357: 186: 149:principal curvatures 543:The Huffington Post 396:an embedding, then 42:Willmore conjecture 571:10.1007/BF01399507 382: 347:Peter Wai-Kwong Li 298:for surfaces with 234: 113:orientable surface 34: 32:and minor radius 1 121:Riemannian metric 672: 639: 638: 610: 604: 603: 601: 589: 583: 582: 552: 546: 531: 522: 521: 501: 495: 494: 476: 454: 391: 389: 388: 383: 381: 380: 259:, with equality 243: 241: 240: 235: 223: 222: 213: 212: 31: 30: 29: 680: 679: 675: 674: 673: 671: 670: 669: 645: 644: 643: 642: 612: 611: 607: 591: 590: 586: 554: 553: 549: 532: 525: 503: 502: 498: 456: 455: 446: 441: 404:) is at least 8 372: 355: 354: 337:) ≥ 2 294:) ≥ 4 278:Calculation of 276: 255:) ≥ 4 214: 204: 184: 183: 166:Willmore energy 163: 156: 145:arithmetic mean 86: 84:Willmore energy 80: 78:Willmore energy 50:Willmore energy 27: 25: 24: 17: 12: 11: 5: 678: 676: 668: 667: 662: 657: 647: 646: 641: 640: 621:(5): 531–534. 605: 584: 565:(2): 269–291. 547: 523: 496: 443: 442: 440: 437: 379: 375: 371: 368: 365: 362: 351:Shing-Tung Yau 343: 342: 275: 272: 261:if and only if 245: 244: 233: 230: 227: 221: 217: 211: 207: 203: 200: 197: 194: 191: 161: 154: 141:mean curvature 82:Main article: 79: 76: 15: 13: 10: 9: 6: 4: 3: 2: 677: 666: 663: 661: 658: 656: 653: 652: 650: 636: 632: 628: 624: 620: 616: 609: 606: 600: 595: 588: 585: 580: 576: 572: 568: 564: 560: 559: 551: 548: 545: 544: 539: 535: 530: 528: 524: 519: 515: 511: 507: 500: 497: 492: 488: 484: 480: 475: 470: 466: 462: 461: 453: 451: 449: 445: 438: 436: 434: 430: 426: 422: 418: 414: 409: 407: 403: 399: 395: 377: 373: 363: 360: 352: 348: 340: 336: 332: 328: 324: 320: 319: 318: 316: 312: 308: 304: 301: 297: 293: 289: 285: 281: 273: 271: 269: 265: 262: 258: 254: 250: 231: 228: 225: 219: 215: 209: 205: 201: 195: 189: 182: 181: 180: 178: 174: 170: 167: 160: 153: 150: 146: 142: 138: 135: →  134: 131: :  130: 126: 122: 118: 114: 110: 106: 103: 99: 96: →  95: 92: :  91: 85: 77: 75: 73: 69: 65: 62: 61:mathematician 59: 55: 51: 47: 43: 39: 21: 618: 614: 608: 599:math/0203224 587: 562: 556: 550: 541: 534:Frank Morgan 509: 505: 499: 464: 458: 410: 405: 401: 397: 393: 344: 338: 334: 330: 326: 322: 314: 310: 306: 302: 295: 291: 287: 283: 279: 277: 263: 256: 252: 248: 246: 179:is given by 176: 172: 168: 165: 158: 151: 136: 132: 128: 124: 116: 97: 93: 89: 87: 64:Tom Willmore 41: 35: 512:: 493–496. 467:: 683–782. 417:André Neves 123:induced by 72:André Neves 46:lower bound 649:Categories 439:References 433:revolution 115:. Giving 474:1202.6036 425:tube tori 411:In 2012, 370:→ 367:Σ 345:In 1982, 274:Statement 206:∫ 105:immersion 660:Surfaces 536:(2012) " 635:0751827 579:0674407 518:0202066 491:3152944 147:of the 139:be the 109:compact 58:English 48:on the 26:√ 633:  577:  516:  489:  268:sphere 127:, let 102:smooth 40:, the 594:arXiv 469:arXiv 300:genus 175:) of 143:(the 107:of a 100:be a 54:torus 52:of a 44:is a 429:tori 415:and 349:and 157:and 119:the 88:Let 70:and 623:doi 567:doi 540:", 510:11B 479:doi 465:179 431:of 394:not 325:in 36:In 651:: 631:MR 629:. 619:16 617:. 575:MR 573:. 563:69 561:. 526:^ 514:MR 508:. 487:MR 485:. 477:. 463:. 447:^ 408:. 329:, 270:. 111:, 637:. 625:: 602:. 596:: 581:. 569:: 520:. 493:. 481:: 471:: 406:π 402:M 400:( 398:W 378:3 374:S 364:: 361:f 341:. 339:π 335:M 333:( 331:W 327:R 323:M 315:M 313:( 311:W 307:M 305:( 303:g 296:π 292:M 290:( 288:W 284:M 282:( 280:W 264:M 257:π 253:M 251:( 249:W 232:. 229:A 226:d 220:2 216:H 210:M 202:= 199:) 196:M 193:( 190:W 177:M 173:M 171:( 169:W 162:2 159:κ 155:1 152:κ 137:R 133:M 129:H 125:v 117:M 98:R 94:M 90:v 28:2

Index


differential geometry
lower bound
Willmore energy
torus
English
mathematician
Tom Willmore
Fernando Codá Marques
André Neves
Willmore energy
smooth
immersion
compact
orientable surface
Riemannian metric
mean curvature
arithmetic mean
principal curvatures
if and only if
sphere
genus
Peter Wai-Kwong Li
Shing-Tung Yau
Fernando Codá Marques
André Neves
Almgren–Pitts min-max theory of minimal surfaces
tube tori
tori
revolution

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