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Donaldson–Thomas theory

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1037:, proved in increasing generality, that Gromov–Witten and Donaldson–Thomas theories of algebraic three-folds are actually equivalent. More concretely, their generating functions are equal after an appropriate change of variables. For Calabi–Yau threefolds, the Donaldson–Thomas invariants can be formulated as weighted Euler characteristic on the moduli space. There have also been recent connections between these invariants, the motivic Hall algebra, and the ring of functions on the quantum torus. 39: 1539: 1720: 1325: 1016:
to a smooth target. The moduli stack of all such maps admits a virtual fundamental class, and intersection theory on this stack yields numerical invariants that can often contain enumerative information. In similar spirit, the approach of Donaldson–Thomas theory is to study curves in an algebraic
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Whereas in Gromov–Witten theory, maps are allowed to be multiple covers and collapsed components of the domain curve, Donaldson–Thomas theory allows for nilpotent information contained in the sheaves, however, these are integer valued invariants. There are deep conjectures due to
1570: 1534:{\displaystyle {\begin{aligned}T_{}{\mathcal {M}}^{\sigma }(Y,\alpha )&\cong {\text{Ext}}^{1}({\mathcal {E}},{\mathcal {E}})\\{\text{Ob}}_{}({\mathcal {M}}^{\sigma }(Y,\alpha ))&\cong {\text{Ext}}^{2}({\mathcal {E}},{\mathcal {E}})\end{aligned}}} 1319:-stable sheaves. These moduli stacks have much nicer properties, such as being separated of finite type. The only technical difficulty is they can have bad singularities due to the existence of obstructions of deformations of a fixed sheaf. In particular 2024:
the invariant defined above does not change. At the outset researchers chose the Gieseker stability condition, but other DT-invariants in recent years have been studied based on other stability conditions, leading to wall-crossing formulas.
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three-fold by their equations. More accurately, by studying ideal sheaves on a space. This moduli space also admits a virtual fundamental class and yields certain numerical invariants that are enumerative.
1715:{\displaystyle {\text{Ext}}^{2}({\mathcal {E}},{\mathcal {E}})\cong {\text{Ext}}^{1}({\mathcal {E}},{\mathcal {E}}\otimes \omega _{Y})^{\vee }\cong {\text{Ext}}^{1}({\mathcal {E}},{\mathcal {E}})^{\vee }} 994: 1129: 1330: 1253: 1207: 1168: 940: 1045:
is a discrete set of 2875 points. The virtual number of points is the actual number of points, and hence the Donaldson–Thomas invariant of this moduli space is the integer 2875.
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of the moduli spaces being studied. Essentially, these stability conditions correspond to points in the Kahler moduli space of a Calabi-Yau manifold, as considered in
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threefold, its Donaldson–Thomas invariant is the virtual number of its points, i.e., the integral of the cohomology class 1 against the virtual
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Kontsevich, Maxim; Soibelman, Yan (2008-11-16). "Stability structures, motivic Donaldson-Thomas invariants and cluster transformations".
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which gives a perfect obstruction theory of dimension 0. In particular, this implies the associated virtual fundamental class
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Maulik, D.; Nekrasov, N.; Okounkov, A.; Pandharipande, R. (2006). "Gromov–Witten theory and Donaldson–Thomas theory, I".
1212: 997: 582: 2094: 1009: 876: 2401: 2076: 804: 2069: 943: 785: 417: 377: 17: 2235: 1173: 1134: 780: 602: 522: 337: 2194:. Proceedings of Symposia in Pure Mathematics. Vol. 93. American Mathematical Society. pp. 363–396. 848: 482: 259: 2336: 747: 552: 169: 101: 905: 2406: 797: 507: 226: 143: 657: 362: 302: 269: 246: 97: 84: 532: 2089: 2039: 1882: 856: 752: 221: 159: 93: 1258: 1034: 1022: 880: 844: 662: 547: 195: 2305: 2268: 2195: 2172: 2154: 2125: 2104: 825: 712: 627: 527: 487: 367: 332: 205: 89: 687: 2378: 2340: 2213: 1042: 852: 672: 577: 412: 322: 292: 1980: 1960: 1302: 1282: 2361: 2278: 2205: 2164: 2065: 860: 682: 617: 587: 467: 407: 372: 317: 307: 287: 164: 53: 2354: 2290: 2227: 2000: 2350: 2324: 2286: 2223: 1030: 1026: 1013: 864: 767: 722: 667: 652: 642: 537: 502: 327: 231: 2257:"A holomorphic Casson invariant for Calabi-Yau 3-folds, and bundles on $ K3$ fibrations" 607: 2099: 1855: 1547: 1064: 742: 737: 697: 632: 622: 542: 462: 452: 447: 442: 357: 352: 347: 312: 297: 200: 2395: 2051: 891: 837: 732: 717: 692: 677: 647: 592: 567: 512: 497: 492: 457: 432: 422: 392: 236: 58: 30: 2365: 38: 2176: 895: 840: 762: 597: 477: 427: 397: 382: 241: 2256: 2124:
Bridgeland, Tom (2006-02-08). "Stability conditions on triangulated categories".
1842:{\displaystyle ^{vir}\in H_{0}({\mathcal {M}}^{\sigma }(Y,\alpha ),\mathbb {Z} )} 2209: 757: 727: 707: 562: 517: 472: 437: 387: 2168: 702: 637: 572: 264: 2282: 1012:
is to probe the geometry of a space by studying pseudoholomorphic maps from
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Instead of moduli spaces of sheaves, one considers moduli spaces of
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Szendrői, Balázs (2016). "Cohomological Donaldson–Thomas theory".
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Similarly, the Donaldson–Thomas invariant of the moduli space of
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of algebraic three-folds and the theory of stable pairs due to
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Donaldson–Thomas theory is physically motivated by certain
1124:{\displaystyle \alpha \in H^{\text{even}}(Y,\mathbb {Q} )} 875:). Donaldson–Thomas invariants have close connections to 2003: 1983: 1963: 1885: 1858: 1734: 1573: 1550: 1328: 1305: 1285: 1261: 1215: 1176: 1137: 1087: 1067: 952: 908: 898:. This is due to the fact the invariants depend on a 2075:
Instead of integer valued invariants, one considers
2046:. The weight function associates to every point in 996:
is the category of BPS states for the corresponding
2034:The Donaldson–Thomas invariant of the moduli space 1997:. It was proved by Thomas that for a smooth family 1248:{\displaystyle {\mathcal {M}}^{\sigma }(Y,\alpha )} 2016: 1989: 1969: 1946: 1864: 1841: 1714: 1556: 1533: 1311: 1291: 1271: 1247: 1201: 1162: 1123: 1073: 988: 934: 18:Maulik–Nekrasov–Okounkov–Pandharipande conjecture 2072:that count stable pairs of a Calabi–Yau 3-fold. 872: 805: 8: 2240:: CS1 maint: DOI inactive as of June 2024 ( 1957:which depends upon the stability condition 2383:: CS1 maint: location missing publisher ( 812: 798: 37: 26: 2309: 2272: 2199: 2158: 2129: 2008: 2002: 1982: 1962: 1927: 1902: 1896: 1895: 1890: 1884: 1857: 1832: 1831: 1807: 1801: 1800: 1790: 1771: 1746: 1740: 1739: 1733: 1706: 1696: 1695: 1686: 1685: 1676: 1671: 1661: 1651: 1638: 1637: 1628: 1627: 1618: 1613: 1600: 1599: 1590: 1589: 1580: 1575: 1572: 1549: 1518: 1517: 1508: 1507: 1498: 1493: 1461: 1455: 1454: 1439: 1438: 1434: 1429: 1415: 1414: 1405: 1404: 1395: 1390: 1361: 1355: 1354: 1342: 1341: 1337: 1329: 1327: 1304: 1284: 1263: 1262: 1260: 1224: 1218: 1217: 1214: 1202:{\displaystyle c({\mathcal {E}})=\alpha } 1184: 1183: 1175: 1170:of coherent sheaves with Chern character 1163:{\displaystyle {\mathcal {M}}(Y,\alpha )} 1139: 1138: 1136: 1114: 1113: 1098: 1086: 1066: 977: 976: 967: 954: 953: 951: 923: 922: 913: 907: 2116: 855:. The Donaldson–Thomas invariant is a 177: 151: 110: 76: 45: 29: 2376: 2233: 2333:The geometric universe (Oxford, 1996) 935:{\displaystyle D^{b}({\mathcal {M}})} 863:. The invariants were introduced by 7: 1564:is Calabi-Yau, Serre duality implies 1255:parametrizing such coherent sheaves 1131:there is an associated moduli stack 255:= 4 supersymmetric Yang–Mills theory 2373:, Mathematische Arbeitstagung, Bonn 186:Geometric Langlands correspondence 25: 1279:which have a stability condition 1041:The moduli space of lines on the 2261:Journal of Differential Geometry 946:, and the resulting subcategory 2070:Pandharipande–Thomas invariants 1947:{\displaystyle \int _{^{vir}}1} 1924: 1920: 1908: 1891: 1836: 1825: 1813: 1796: 1768: 1764: 1752: 1735: 1703: 1682: 1658: 1624: 1606: 1586: 1524: 1504: 1482: 1479: 1467: 1450: 1445: 1435: 1421: 1401: 1379: 1367: 1348: 1338: 1272:{\displaystyle {\mathcal {E}}} 1242: 1230: 1190: 1180: 1157: 1145: 1118: 1104: 983: 973: 929: 919: 1: 1081:and a fixed cohomology class 824:In mathematics, specifically 2054:of a hyperplane singularity. 2367:Donaldson–Thomas invariants 1061:For a Calabi-Yau threefold 834:Donaldson–Thomas invariants 2423: 2169:10.1112/S0010437X06002302 2038:is equal to the weighted 1977:and the cohomology class 1872:. We can then define the 1852:is in homological degree 1052:on the quintic is 609250. 2068:objects. That gives the 1299:imposed upon them, i.e. 1010:Gromov–Witten invariants 902:on the derived category 877:Gromov–Witten invariants 111:Non-perturbative results 2337:Oxford University Press 2212:(inactive 2024-06-23). 2210:10.1090/pspum/093/01589 2095:Gromov–Witten invariant 1990:{\displaystyle \alpha } 1970:{\displaystyle \sigma } 1312:{\displaystyle \sigma } 1292:{\displaystyle \sigma } 1004:Definition and examples 830:Donaldson–Thomas theory 2283:10.4310/jdg/1214341649 2255:Thomas, R. P. (2000). 2147:Compositio Mathematica 2018: 1991: 1971: 1955: 1948: 1866: 1850: 1843: 1723: 1716: 1558: 1542: 1535: 1313: 1293: 1273: 1249: 1203: 1164: 1125: 1075: 990: 936: 227:Conformal field theory 144:AdS/CFT correspondence 2019: 2017:{\displaystyle Y_{t}} 1992: 1972: 1949: 1878: 1867: 1844: 1727: 1717: 1566: 1559: 1536: 1321: 1314: 1294: 1274: 1250: 1204: 1165: 1126: 1076: 991: 937: 270:Holographic principle 247:Twistor string theory 2090:Enumerative geometry 2040:Euler characteristic 2001: 1981: 1961: 1883: 1856: 1732: 1571: 1548: 1326: 1303: 1283: 1259: 1213: 1174: 1135: 1085: 1065: 950: 906: 222:Theory of everything 2325:Donaldson, Simon K. 2050:an analogue of the 1035:Rahul Pandharipande 900:stability condition 881:Rahul Pandharipande 865:Simon Donaldson 260:Kaluza–Klein theory 196:Monstrous moonshine 77:Perturbative theory 46:Fundamental objects 2402:Algebraic geometry 2339:, pp. 31–47, 2329:Thomas, Richard P. 2105:Quantum cohomology 2014: 1987: 1967: 1944: 1862: 1839: 1712: 1554: 1531: 1529: 1309: 1289: 1269: 1245: 1199: 1160: 1121: 1071: 1008:The basic idea of 986: 932: 826:algebraic geometry 2362:Kontsevich, Maxim 2346:978-0-19-850059-9 2219:978-1-4704-1992-9 1865:{\displaystyle 0} 1674: 1616: 1578: 1557:{\displaystyle Y} 1496: 1432: 1393: 1101: 1074:{\displaystyle Y} 1043:quintic threefold 853:fundamental class 832:is the theory of 822: 821: 553:van Nieuwenhuizen 16:(Redirected from 2414: 2388: 2382: 2374: 2372: 2357: 2316: 2315: 2313: 2301: 2295: 2294: 2276: 2252: 2246: 2245: 2239: 2231: 2203: 2192:String-Math 2014 2187: 2181: 2180: 2162: 2153:(5): 1263–1285. 2142: 2136: 2135: 2133: 2121: 2066:derived category 2023: 2021: 2020: 2015: 2013: 2012: 1996: 1994: 1993: 1988: 1976: 1974: 1973: 1968: 1953: 1951: 1950: 1945: 1940: 1939: 1938: 1937: 1907: 1906: 1901: 1900: 1871: 1869: 1868: 1863: 1848: 1846: 1845: 1840: 1835: 1812: 1811: 1806: 1805: 1795: 1794: 1782: 1781: 1751: 1750: 1745: 1744: 1721: 1719: 1718: 1713: 1711: 1710: 1701: 1700: 1691: 1690: 1681: 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2253: 2249: 2236:cite conference 2232: 2220: 2189: 2188: 2184: 2144: 2143: 2139: 2123: 2122: 2118: 2113: 2086: 2061: 2059:Generalizations 2031: 2004: 1999: 1998: 1979: 1978: 1959: 1958: 1923: 1894: 1886: 1881: 1880: 1854: 1853: 1799: 1786: 1767: 1738: 1730: 1729: 1702: 1670: 1657: 1647: 1612: 1574: 1569: 1568: 1546: 1545: 1528: 1527: 1492: 1485: 1453: 1428: 1425: 1424: 1389: 1382: 1353: 1333: 1324: 1323: 1301: 1300: 1281: 1280: 1257: 1256: 1216: 1211: 1210: 1172: 1171: 1133: 1132: 1094: 1083: 1082: 1063: 1062: 1059: 1031:Nikita Nekrasov 1027:Andrei Okounkov 1006: 963: 948: 947: 944:mirror symmetry 909: 904: 903: 818: 773: 772: 283: 275: 274: 232:Quantum gravity 217: 191:Mirror symmetry 23: 22: 15: 12: 11: 5: 2420: 2418: 2410: 2409: 2404: 2394: 2393: 2390: 2389: 2358: 2345: 2318: 2317: 2296: 2267:(2): 367–438. 2247: 2218: 2182: 2137: 2115: 2114: 2112: 2109: 2108: 2107: 2102: 2100:Hilbert scheme 2097: 2092: 2085: 2082: 2081: 2080: 2073: 2060: 2057: 2056: 2055: 2030: 2027: 2011: 2007: 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theory 2405: 2403: 2400: 2399: 2397: 2386: 2380: 2369: 2368: 2363: 2359: 2356: 2352: 2348: 2342: 2338: 2334: 2330: 2326: 2322: 2321: 2312: 2307: 2300: 2297: 2292: 2288: 2284: 2280: 2275: 2270: 2266: 2262: 2258: 2251: 2248: 2243: 2237: 2229: 2225: 2221: 2215: 2211: 2207: 2202: 2197: 2193: 2186: 2183: 2178: 2174: 2170: 2166: 2161: 2156: 2152: 2148: 2141: 2138: 2132: 2127: 2120: 2117: 2110: 2106: 2103: 2101: 2098: 2096: 2093: 2091: 2088: 2087: 2083: 2078: 2074: 2071: 2067: 2063: 2062: 2058: 2053: 2052:Milnor number 2049: 2045: 2041: 2037: 2033: 2032: 2028: 2026: 2009: 2005: 1984: 1964: 1954: 1941: 1934: 1931: 1928: 1917: 1914: 1911: 1903: 1887: 1877: 1875: 1859: 1849: 1828: 1822: 1819: 1816: 1808: 1791: 1787: 1783: 1778: 1775: 1772: 1761: 1758: 1755: 1747: 1726: 1722: 1707: 1692: 1677: 1667: 1662: 1652: 1648: 1644: 1634: 1619: 1609: 1596: 1581: 1565: 1551: 1541: 1514: 1499: 1489: 1487: 1476: 1473: 1470: 1462: 1411: 1396: 1386: 1384: 1376: 1373: 1370: 1362: 1334: 1320: 1306: 1286: 1239: 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509: 506: 504: 501: 499: 496: 494: 491: 489: 486: 484: 481: 479: 476: 474: 471: 469: 466: 464: 461: 459: 456: 454: 451: 449: 446: 444: 441: 439: 436: 434: 431: 429: 426: 424: 421: 419: 416: 414: 411: 409: 406: 404: 401: 399: 396: 394: 391: 389: 386: 384: 381: 379: 376: 374: 371: 369: 366: 364: 361: 359: 356: 354: 351: 349: 346: 344: 341: 339: 336: 334: 331: 329: 326: 324: 321: 319: 316: 314: 311: 309: 306: 304: 301: 299: 296: 294: 291: 289: 286: 285: 279: 278: 271: 268: 266: 263: 261: 258: 256: 254: 250: 248: 245: 243: 240: 238: 237:Supersymmetry 235: 233: 230: 228: 225: 223: 220: 219: 213: 212: 207: 204: 202: 199: 197: 194: 192: 189: 187: 184: 183: 182: 181: 176: 171: 168: 166: 163: 161: 160:Phenomenology 158: 157: 156: 155: 152:Phenomenology 150: 145: 142: 140: 137: 135: 132: 130: 127: 125: 122: 120: 117: 116: 115: 114: 109: 103: 99: 95: 91: 88: 86: 83: 82: 81: 80: 75: 70: 67: 65: 62: 60: 59:Cosmic string 57: 55: 52: 51: 50: 49: 44: 40: 36: 35: 32: 31:String theory 28: 19: 2366: 2332: 2299: 2274:math/9806111 2264: 2260: 2250: 2191: 2185: 2160:math/0312059 2150: 2146: 2140: 2131:math/0212237 2119: 2047: 2043: 2035: 1956: 1879: 1874:DT invariant 1873: 1851: 1728: 1724: 1567: 1544:Now because 1543: 1322: 1060: 1019: 1007: 896:gauge theory 885: 841:moduli space 836:. Given a 833: 829: 823: 293:Arkani-Hamed 252: 242:Supergravity 2079:invariants. 857:holomorphic 653:Silverstein 178:Mathematics 90:Superstring 2396:Categories 2201:1503.07349 2111:References 1057:Definition 888:BPS states 849:Calabi–Yau 673:Strominger 668:Steinhardt 663:Staudacher 578:Polchinski 528:Nanopoulos 488:Mandelstam 468:Kontsevich 308:Berenstein 265:Multiverse 2311:0811.2435 1985:α 1965:σ 1918:α 1904:σ 1888:∫ 1823:α 1809:σ 1784:∈ 1762:α 1748:σ 1708:∨ 1668:≅ 1663:∨ 1649:ω 1645:⊗ 1610:≅ 1490:≅ 1477:α 1463:σ 1387:≅ 1377:α 1363:σ 1307:σ 1287:σ 1240:α 1226:σ 1197:α 1155:α 1092:∈ 1089:α 961:⊂ 713:Veneziano 588:Rajaraman 483:Maldacena 373:Gopakumar 323:Dijkgraaf 318:Curtright 282:Theorists 170:Landscape 165:Cosmology 129:U-duality 124:T-duality 119:S-duality 102:Heterotic 2379:citation 2364:(2007), 2084:See also 786:Glossary 768:Zwiebach 723:Verlinde 718:Verlinde 693:Townsend 688:'t Hooft 683:Susskind 618:Sagnotti 583:Polyakov 538:Nekrasov 503:Minwalla 498:Martinec 463:Knizhnik 458:Klebanov 453:Kapustin 423:Horowitz 353:Fischler 288:Aganagić 206:K-theory 139:F-theory 134:M-theory 2355:1634503 2291:1818182 2228:3526001 2177:5760317 2077:motivic 871: ( 845:sheaves 838:compact 781:History 698:Trivedi 678:Sundrum 643:Shenker 633:Seiberg 628:Schwarz 598:Randall 558:Novikov 548:Nielsen 533:Năstase 443:Kallosh 428:Gibbons 368:Gliozzi 358:Friedan 348:Ferrara 333:Douglas 328:Distler 98:Type II 85:Bosonic 69:D-brane 2353:  2343:  2289:  2226:  2216:  2175:  1050:conics 892:string 763:Zumino 758:Zaslow 743:Yoneya 733:Witten 648:Siegel 623:Scherk 593:Ramond 568:Ooguri 493:Marolf 448:Kaluza 433:Kachru 418:Hořava 413:Harvey 408:Hanson 393:Gubser 383:Greene 313:Bousso 298:Atiyah 94:Type I 54:String 2371:(PDF) 2306:arXiv 2269:arXiv 2196:arXiv 2173:S2CID 2155:arXiv 2126:arXiv 2029:Facts 847:on a 703:Turok 608:Roček 573:Ovrut 563:Olive 543:Neveu 523:Myers 518:Mukhi 508:Moore 478:Linde 473:Klein 398:Gukov 388:Gross 378:Green 363:Gates 343:Dvali 303:Banks 64:Brane 2385:link 2341:ISBN 2242:link 2214:ISBN 1100:even 1033:and 998:SCFT 894:and 873:1998 728:Wess 708:Vafa 613:Rohm 513:Motl 438:Kaku 403:Guth 338:Duff 2279:doi 2206:doi 2165:doi 2151:142 2042:of 1673:Ext 1615:Ext 1577:Ext 1495:Ext 1392:Ext 843:of 738:Yau 658:Sơn 638:Sen 2398:: 2381:}} 2377:{{ 2351:MR 2349:, 2335:, 2327:; 2287:MR 2285:. 2277:. 2265:54 2263:. 2259:. 2238:}} 2234:{{ 2224:MR 2222:. 2204:. 2171:. 2163:. 2149:. 1876:as 1431:Ob 1029:, 1025:, 1000:. 828:, 100:, 96:, 2387:) 2314:. 2308:: 2293:. 2281:: 2271:: 2244:) 2230:. 2208:: 2198:: 2179:. 2167:: 2157:: 2134:. 2128:: 2048:M 2044:M 2036:M 2010:t 2006:Y 1942:1 1935:r 1932:i 1929:v 1925:] 1921:) 1915:, 1912:Y 1909:( 1898:M 1892:[ 1860:0 1837:) 1833:Z 1829:, 1826:) 1820:, 1817:Y 1814:( 1803:M 1797:( 1792:0 1788:H 1779:r 1776:i 1773:v 1769:] 1765:) 1759:, 1756:Y 1753:( 1742:M 1736:[ 1704:) 1698:E 1693:, 1688:E 1683:( 1678:1 1659:) 1653:Y 1640:E 1635:, 1630:E 1625:( 1620:1 1607:) 1602:E 1597:, 1592:E 1587:( 1582:2 1552:Y 1525:) 1520:E 1515:, 1510:E 1505:( 1500:2 1483:) 1480:) 1474:, 1471:Y 1468:( 1457:M 1451:( 1446:] 1441:E 1436:[ 1422:) 1417:E 1412:, 1407:E 1402:( 1397:1 1380:) 1374:, 1371:Y 1368:( 1357:M 1349:] 1344:E 1339:[ 1335:T 1265:E 1243:) 1237:, 1234:Y 1231:( 1220:M 1194:= 1191:) 1186:E 1181:( 1178:c 1158:) 1152:, 1149:Y 1146:( 1141:M 1119:) 1115:Q 1111:, 1108:Y 1105:( 1096:H 1069:Y 984:) 979:M 974:( 969:b 965:D 956:P 930:) 925:M 920:( 915:b 911:D 813:e 806:t 799:v 253:N 104:) 92:( 20:)

Index

Maulik–Nekrasov–Okounkov–Pandharipande conjecture
String theory

String
Cosmic string
Brane
D-brane
Bosonic
Superstring
Type I
Type II
Heterotic
S-duality
T-duality
U-duality
M-theory
F-theory
AdS/CFT correspondence
Phenomenology
Cosmology
Landscape
Geometric Langlands correspondence
Mirror symmetry
Monstrous moonshine
Vertex algebra
K-theory
Theory of everything
Conformal field theory
Quantum gravity
Supersymmetry

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