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Crank of a partition

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Whether these guesses are warranted by evidence, I leave it to the reader to decide. Whatever the final verdict of posterity may be, I believe the "crank" is unique among arithmetical functions in having been named before it was discovered. May it be preserved from the ignominious fate of the planet
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and his coauthors argued that Ramanujan knew about the crank, although not in the form that Andrews and Garvan have defined. In a systematic study of the Lost Notebook of Ramanujan, Berndt and his coauthors have given substantial evidence that Ramanujan knew about the dissections of the crank
1776: 153:+ 6 ) can be divided into 5 (respectively, 7 and 11) subclasses of equal size. The then known proofs of these congruences were based on the ideas of generating functions and they did not specify a method for the division of the partitions into subclasses of equal size. 702: 1965:
The concepts of rank and crank can both be used to classify partitions of certain integers into subclasses of equal size. However the two concepts produce different subclasses of partitions. This is illustrated in the following two tables.
160:. The rank of a partition is the integer obtained by subtracting the number of parts in the partition from the largest part in the partition. For example, the rank of the partition λ = { 4, 2, 1, 1, 1 } of 9 is 4 − 5 = −1. Denoting by 1567: 340:+ 4 into five classes of equal size: Put in one class all those partitions whose ranks are congruent to each other modulo 5. The same idea can be applied to divide the partitions of integers of the form 7 494:
that there exists an arithmetical coefficient similar to, but more recondite than, the rank of a partition; I shall call this hypothetical coefficient the "crank" of the partition and denote by
832:{\displaystyle c(\lambda )={\begin{cases}\ell (\lambda )&{\text{if }}\omega (\lambda )=0\\\mu (\lambda )-\omega (\lambda )&{\text{if }}\omega (\lambda )>0.\end{cases}}} 2493: 1771:{\displaystyle \sum _{n=0}^{\infty }\sum _{m=-\infty }^{\infty }M(m,n)z^{m}q^{n}=\prod _{n=1}^{\infty }{\frac {(1-q^{n})}{(1-zq^{n})(1-z^{-1}q^{n})}}} 51:, who hypothesised its existence in a 1944 paper. Dyson gave a list of properties this yet-to-be-defined quantity should have. In 1988, 92: 2312: 1786:
Andrews and Garvan proved the following result which shows that the crank as defined above does meet the conditions given by Dyson.
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Assuming that these conjectures are true, they provided a way of splitting up all partitions of numbers of the form 5
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In a paper published in 1988 George E. Andrews and F. G. Garvan defined the crank of a partition as follows:
344:+ 5 into seven equally numerous classes. But the idea fails to divide partitions of integers of the form 11 103: 2454: 2417: 726: 47:
is a certain number associated with the partition. It was first introduced without a definition by
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discovered a definition for the crank satisfying the properties hypothesized for it by Dyson.
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The cranks of the partitions of the integers 4, 5, 6 are computed in the following tables.
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Thus the rank cannot be used to prove the theorem combinatorially. However, Dyson wrote,
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Manjil P. Saikia (2015). "A study of the crank function in Ramanujan's Lost Notebook".
2472: 1518:(1,1) = 1 as given by the following generating function. The number of partitions of 48: 36: 220:. Based on empirical evidences Dyson formulated the following conjectures known as 56: 17: 91:
in a paper published in 1918 stated and proved the following congruences for the
27: 348:+ 6 into 11 classes of the same size, as the following table shows. 2449: 2412: 26: 1970:
Classification of the partitions of the integer 9 based on cranks
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Manjil P. Saikia (2013). "Cranks in Ramanujan's Lost Notebook".
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Classification of the partitions of the integer 9 based on ranks
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These congruences imply that partitions of numbers of the form 5
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In his Eureka paper Dyson proposed the concept of the
1570: 705: 2381:Proceedings of the Cambridge Philosophical Society 1770: 831: 2367:Srinivasa, Ramanujan (1919). "Some properties of 2342:Bulletin of the American Mathematical Society 2333:George E. Andrews; F.G. Garvan (April 1988). 8: 2400:Journal of the Assam Academy of Mathematics 2294:"Some Guesses in The Theory of Partitions" 2448: 2411: 1756: 1743: 1721: 1694: 1678: 1672: 1661: 1648: 1638: 1610: 1596: 1586: 1575: 1569: 799: 743: 721: 704: 360:= 0 ) divided into classes based on ranks 2121: 1973: 1207: 1012: 851: 363: 2284: 2328: 2326: 2324: 79:) denote the number of partitions of 7: 1673: 1611: 1606: 1587: 71:be a non-negative integer and let 25: 2494:Conjectures that have been proved 145:+ 4 (respectively, of the forms 7 677:) denote the number of parts of 352:Partitions of the integer 6 ( 11 665:) denote the number of 1's in 176:), the number of partitions of 2335:"Dyson's crank of a partition" 1762: 1730: 1727: 1705: 1700: 1681: 1631: 1619: 1482:, the number of partitions of 813: 807: 794: 788: 779: 773: 757: 751: 738: 732: 715: 709: 227:For all non-negative integers 1: 2253:{ 1, 1, 1, 1, 1, 1, 1, 1, 1 } 2102:{ 1, 1, 1, 1, 1, 1, 1, 1, 1 } 1204:Cranks of the partitions of 6 1009:Cranks of the partitions of 5 848:Cranks of the partitions of 4 653:) denote the largest part of 180:whose ranks are congruent to 1549:The generating function for 2375:), number of partitions of 2259:{ 2, 1, 1, 1, 1, 1, 1, 1 } 2246: 2238: 2204: 2201: 2195: 2164: 2098: 2081: 2064: 2047: 2030: 2013: 519:whose crank is congruent to 513:the number of partitions of 212:+ 5) for various values of 2510: 2108:{ 2, 1, 1, 1, 1, 1, 1, 1} 2292:Freeman J. Dyson (1944). 87:(0) is defined to be 1). 2111:{ 3, 1, 1, 1, 1, 1, 1 } 2437:The Mathematics Student 2247:{ 2, 2, 1, 1, 1, 1, 1 } 2233:{ 3, 1, 1, 1, 1, 1, 1 } 2099:{ 2, 2, 1, 1, 1, 1, 1 } 1772: 1677: 1615: 1591: 833: 32: 2275:generating function. 1773: 1657: 1592: 1571: 1506: = 1 where 1478:≥ 0 and all integers 834: 488:I hold in fact : 104:Ramanujan congruences 62: 31:Freeman Dyson in 2005 30: 2484:Arithmetic functions 2266:Ramanujan and cranks 2250:{ 2, 2, 2, 1, 1, 1 } 2239:{ 4, 1, 1, 1, 1, 1 } 2219:{ 3, 2, 1, 1, 1, 1 } 2105:{ 2, 2, 2, 1, 1, 1 } 2085:{ 3, 2, 1, 1, 1, 1 } 2082:{ 4, 1, 1, 1, 1, 1 } 1568: 1522:with crank equal to 1486:with crank equal to 703: 2489:Srinivasa Ramanujan 2459:2014arXiv1406.3299S 2422:2014arXiv1402.6644S 633:Definition of crank 188:, Dyson considered 158:rank of a partition 89:Srinivasa Ramanujan 18:Crank (mathematics) 2479:Integer partitions 2301:Eureka (Cambridge) 2208:{ 4, 2, 1, 1, 1 } 2094:{ 3, 2, 2, 1, 1 } 1768: 1561:) is given below: 829: 824: 102:), since known as 93:partition function 33: 2263: 2262: 2236:{ 2, 2, 2, 2, 1 } 2222:{ 3, 3, 1, 1, 1 } 2179:{ 5, 1, 1, 1, 1 } 2115: 2114: 2091:{ 2, 2, 2, 2, 1 } 2088:{ 3, 3, 1, 1, 1 } 2040:{ 4, 2, 1, 1, 1 } 2037:{ 5, 1, 1, 1, 1 } 1766: 1474:For all integers 1464: 1463: 1201: 1200: 1006: 1005: 802: 746: 482: 481: 137:+ 6) ≡ 0 (mod 11) 53:George E. Andrews 45:integer partition 16:(Redirected from 2501: 2463: 2462: 2452: 2432: 2426: 2425: 2415: 2395: 2389: 2388: 2364: 2358: 2357: 2355: 2353: 2339: 2330: 2319: 2318: 2298: 2289: 2256:{ 3, 2, 2, 1, 1} 2153:Partitions with 2146:Partitions with 2139:Partitions with 2132:Partitions with 2125:Partitions with 2122: 2007:crank ≡ 4 2005:Partitions with 1998:Partitions with 1991:Partitions with 1984:Partitions with 1977:Partitions with 1974: 1777: 1775: 1774: 1769: 1767: 1765: 1761: 1760: 1751: 1750: 1726: 1725: 1703: 1699: 1698: 1679: 1676: 1671: 1653: 1652: 1643: 1642: 1614: 1609: 1590: 1585: 1208: 1013: 852: 838: 836: 835: 830: 828: 827: 803: 800: 747: 744: 641:For a partition 364: 222:rank conjectures 127:+ 5) ≡ 0 (mod 7) 117:+ 4) ≡ 0 (mod 5) 21: 2509: 2508: 2504: 2503: 2502: 2500: 2499: 2498: 2469: 2468: 2467: 2466: 2434: 2433: 2429: 2397: 2396: 2392: 2366: 2365: 2361: 2351: 2349: 2337: 2332: 2331: 2322: 2315: 2296: 2291: 2290: 2286: 2281: 2272:Bruce C. Berndt 2270:Recent work by 2268: 2242:{ 3, 2, 2, 2 } 2225:{ 3, 3, 2, 1 } 2156: 2155:rank ≡ 4 2154: 2149: 2148:rank ≡ 3 2147: 2142: 2141:rank ≡ 2 2140: 2135: 2133: 2128: 2127:rank ≡ 0 2126: 2120: 2060:{ 5, 2, 1, 1 } 2008: 2006: 2001: 1999: 1994: 1992: 1987: 1985: 1980: 1978: 1972: 1937:+ 6) = . . . = 1784: 1752: 1739: 1717: 1704: 1690: 1680: 1644: 1634: 1566: 1565: 1472: 1466: 1265: 1253: 1243: 1242:Number of parts 1231: 1219: 1212: 1206: 1070: 1058: 1048: 1047:Number of parts 1036: 1024: 1017: 1011: 909: 897: 887: 886:Number of parts 875: 863: 856: 850: 823: 822: 797: 767: 766: 741: 722: 701: 700: 635: 418: 413: 408: 403: 398: 393: 388: 383: 378: 373: 368: 362: 65: 23: 22: 15: 12: 11: 5: 2507: 2505: 2497: 2496: 2491: 2486: 2481: 2471: 2470: 2465: 2464: 2427: 2390: 2359: 2344:. New Series. 2320: 2313: 2283: 2282: 2280: 2277: 2267: 2264: 2261: 2260: 2257: 2254: 2251: 2248: 2244: 2243: 2240: 2237: 2234: 2231: 2227: 2226: 2223: 2220: 2217: 2214: 2213:{ 4, 2, 2, 1 } 2210: 2209: 2206: 2203: 2200: 2197: 2196:{ 4, 3, 1, 1 } 2193: 2192: 2189: 2186: 2183: 2182:{ 5, 2, 1, 1 } 2180: 2176: 2175: 2172: 2169: 2168:{ 6, 1, 1, 1 } 2166: 2163: 2159: 2158: 2151: 2144: 2137: 2134:rank ≡ 1 2130: 2116: 2113: 2112: 2109: 2106: 2103: 2100: 2096: 2095: 2092: 2089: 2086: 2083: 2079: 2078: 2075: 2074:{ 3, 2, 2, 2 } 2072: 2071:{ 3, 3, 2, 1 } 2069: 2066: 2065:{ 4, 3, 1, 1 } 2062: 2061: 2058: 2055: 2054:{ 4, 2, 2, 1 } 2052: 2049: 2045: 2044: 2041: 2038: 2035: 2032: 2028: 2027: 2024: 2023:{ 6, 1, 1, 1 } 2021: 2018: 2015: 2011: 2010: 2003: 1996: 1989: 1982: 1968: 1963: 1962: 1904: 1838: 1783: 1780: 1779: 1778: 1764: 1759: 1755: 1749: 1746: 1742: 1738: 1735: 1732: 1729: 1724: 1720: 1716: 1713: 1710: 1707: 1702: 1697: 1693: 1689: 1686: 1683: 1675: 1670: 1667: 1664: 1660: 1656: 1651: 1647: 1641: 1637: 1633: 1630: 1627: 1624: 1621: 1618: 1613: 1608: 1605: 1602: 1599: 1595: 1589: 1584: 1581: 1578: 1574: 1530:is denoted by 1490:is denoted by 1471: 1468: 1462: 1461: 1458: 1455: 1452: 1449: 1445: 1444: 1441: 1438: 1435: 1432: 1428: 1427: 1424: 1421: 1418: 1415: 1411: 1410: 1407: 1404: 1401: 1398: 1394: 1393: 1390: 1387: 1384: 1381: 1377: 1376: 1373: 1370: 1367: 1364: 1360: 1359: 1356: 1353: 1350: 1347: 1343: 1342: 1339: 1336: 1333: 1330: 1326: 1325: 1322: 1319: 1316: 1313: 1309: 1308: 1305: 1302: 1299: 1296: 1292: 1291: 1288: 1285: 1282: 1279: 1275: 1274: 1262: 1240: 1230:Number of 1's 1228: 1216: 1202: 1199: 1198: 1195: 1192: 1189: 1186: 1182: 1181: 1178: 1175: 1172: 1169: 1165: 1164: 1161: 1158: 1155: 1152: 1148: 1147: 1144: 1141: 1138: 1135: 1131: 1130: 1127: 1124: 1121: 1118: 1114: 1113: 1110: 1107: 1104: 1101: 1097: 1096: 1093: 1090: 1087: 1084: 1080: 1079: 1067: 1045: 1035:Number of 1's 1033: 1021: 1007: 1004: 1003: 1000: 997: 994: 991: 987: 986: 983: 980: 977: 974: 970: 969: 966: 963: 960: 957: 953: 952: 949: 946: 943: 940: 936: 935: 932: 929: 926: 923: 919: 918: 906: 884: 874:Number of 1's 872: 860: 846: 842: 841: 840: 839: 826: 821: 818: 815: 812: 809: 806: 798: 796: 793: 790: 787: 784: 781: 778: 775: 772: 769: 768: 765: 762: 759: 756: 753: 750: 742: 740: 737: 734: 731: 728: 727: 725: 720: 717: 714: 711: 708: 697:) is given by 634: 631: 620: 619: 614: 569: 528: 480: 479: 476: 474: 472: 470: 468: 466: 464: 462: 460: 457: 454: 453: 450: 447: 444: 442: 439: 436: 434: 431: 428: 425: 421: 420: 415: 410: 405: 400: 395: 390: 385: 380: 375: 370: 350: 334: 333: 275: 139: 138: 128: 118: 64: 61: 24: 14: 13: 10: 9: 6: 4: 3: 2: 2506: 2495: 2492: 2490: 2487: 2485: 2482: 2480: 2477: 2476: 2474: 2460: 2456: 2451: 2446: 2442: 2438: 2431: 2428: 2423: 2419: 2414: 2409: 2405: 2401: 2394: 2391: 2386: 2382: 2378: 2374: 2370: 2363: 2360: 2347: 2343: 2336: 2329: 2327: 2325: 2321: 2316: 2314:9780821805619 2310: 2306: 2302: 2295: 2288: 2285: 2278: 2276: 2273: 2265: 2258: 2255: 2252: 2249: 2245: 2241: 2235: 2232: 2229: 2228: 2224: 2221: 2218: 2215: 2212: 2211: 2207: 2198: 2194: 2190: 2187: 2184: 2181: 2178: 2177: 2173: 2170: 2167: 2161: 2160: 2152: 2145: 2138: 2131: 2124: 2123: 2119: 2110: 2107: 2104: 2101: 2097: 2093: 2090: 2087: 2084: 2080: 2076: 2073: 2070: 2067: 2063: 2059: 2056: 2053: 2050: 2046: 2042: 2039: 2036: 2033: 2029: 2025: 2022: 2019: 2016: 2012: 2004: 1997: 1990: 1983: 1976: 1975: 1971: 1967: 1960: 1956: 1952: 1948: 1944: 1940: 1936: 1932: 1928: 1924: 1920: 1916: 1912: 1908: 1905: 1902: 1898: 1894: 1890: 1886: 1882: 1878: 1874: 1870: 1866: 1862: 1858: 1854: 1850: 1846: 1842: 1839: 1836: 1832: 1828: 1824: 1820: 1816: 1812: 1808: 1804: 1800: 1796: 1792: 1789: 1788: 1787: 1781: 1757: 1753: 1747: 1744: 1740: 1736: 1733: 1722: 1718: 1714: 1711: 1708: 1695: 1691: 1687: 1684: 1668: 1665: 1662: 1658: 1654: 1649: 1645: 1639: 1635: 1628: 1625: 1622: 1616: 1603: 1600: 1597: 1593: 1582: 1579: 1576: 1572: 1564: 1563: 1562: 1560: 1556: 1552: 1547: 1545: 1541: 1537: 1533: 1529: 1525: 1521: 1517: 1513: 1509: 1505: 1502:) except for 1501: 1497: 1493: 1489: 1485: 1481: 1477: 1469: 1467: 1459: 1456: 1453: 1450: 1448:{1,1,1,1,1,1} 1447: 1446: 1442: 1439: 1436: 1433: 1430: 1429: 1425: 1422: 1419: 1416: 1413: 1412: 1408: 1405: 1402: 1399: 1396: 1395: 1391: 1388: 1385: 1382: 1379: 1378: 1374: 1371: 1368: 1365: 1362: 1361: 1357: 1354: 1351: 1348: 1345: 1344: 1340: 1337: 1334: 1331: 1328: 1327: 1323: 1320: 1317: 1314: 1311: 1310: 1306: 1303: 1300: 1297: 1294: 1293: 1289: 1286: 1283: 1280: 1277: 1276: 1272: 1268: 1263: 1260: 1256: 1251: 1247: 1241: 1238: 1234: 1229: 1226: 1222: 1218:Largest part 1217: 1215: 1210: 1209: 1205: 1196: 1193: 1190: 1187: 1184: 1183: 1179: 1176: 1173: 1170: 1167: 1166: 1162: 1159: 1156: 1153: 1150: 1149: 1145: 1142: 1139: 1136: 1133: 1132: 1128: 1125: 1122: 1119: 1116: 1115: 1111: 1108: 1105: 1102: 1099: 1098: 1094: 1091: 1088: 1085: 1082: 1081: 1077: 1073: 1068: 1065: 1061: 1056: 1052: 1046: 1043: 1039: 1034: 1031: 1027: 1023:Largest part 1022: 1020: 1015: 1014: 1010: 1001: 998: 995: 992: 989: 988: 984: 981: 978: 975: 972: 971: 967: 964: 961: 958: 955: 954: 950: 947: 944: 941: 938: 937: 933: 930: 927: 924: 921: 920: 916: 912: 907: 904: 900: 895: 891: 885: 882: 878: 873: 870: 866: 862:Largest part 861: 859: 854: 853: 849: 845: 819: 816: 810: 804: 791: 785: 782: 776: 770: 763: 760: 754: 748: 735: 729: 723: 718: 712: 706: 699: 698: 696: 692: 689:). The crank 688: 684: 680: 676: 672: 668: 664: 660: 656: 652: 648: 644: 640: 639: 638: 632: 630: 629: 627: 618: 615: 612: 608: 604: 600: 596: 592: 588: 584: 580: 576: 573: 570: 567: 563: 559: 555: 551: 547: 543: 539: 535: 532: 529: 527: 523: 520: 517: 514: 510: 506: 502: 498: 495: 492: 491: 490: 489: 485: 477: 475: 473: 471: 469: 467: 465: 463: 461: 458: 456: 455: 451: 448: 445: 443: 441:{1,1,1,1,1,1} 440: 437: 435: 432: 429: 426: 423: 422: 416: 411: 406: 401: 396: 391: 386: 381: 376: 371: 366: 365: 361: 359: 355: 349: 347: 343: 339: 331: 327: 323: 319: 315: 311: 307: 303: 299: 295: 291: 287: 283: 279: 276: 273: 269: 265: 261: 257: 253: 249: 245: 241: 237: 234: 233: 232: 230: 225: 223: 219: 215: 211: 207: 203: 199: 195: 191: 187: 183: 179: 175: 171: 167: 163: 159: 154: 152: 148: 144: 136: 132: 129: 126: 122: 119: 116: 112: 109: 108: 107: 105: 101: 97: 94: 90: 86: 82: 78: 74: 70: 63:Dyson's crank 60: 58: 54: 50: 49:Freeman Dyson 46: 42: 38: 37:number theory 29: 19: 2440: 2436: 2430: 2403: 2399: 2393: 2384: 2380: 2376: 2372: 2368: 2362: 2350:. Retrieved 2345: 2341: 2304: 2300: 2287: 2269: 2174:{ 7, 1, 1 } 2117: 2077:{ 4, 3, 2 } 2043:{ 7, 1, 1 } 1969: 1964: 1958: 1954: 1950: 1946: 1942: 1938: 1934: 1930: 1926: 1922: 1918: 1914: 1910: 1906: 1900: 1896: 1892: 1888: 1884: 1880: 1876: 1872: 1868: 1864: 1860: 1856: 1852: 1848: 1844: 1840: 1834: 1830: 1826: 1822: 1818: 1814: 1810: 1806: 1802: 1798: 1794: 1790: 1785: 1782:Basic result 1558: 1554: 1550: 1548: 1543: 1539: 1535: 1531: 1527: 1523: 1519: 1515: 1511: 1507: 1503: 1499: 1495: 1491: 1487: 1483: 1479: 1475: 1473: 1465: 1270: 1266: 1258: 1254: 1249: 1245: 1244:larger than 1236: 1232: 1224: 1220: 1213: 1203: 1075: 1071: 1063: 1059: 1054: 1050: 1049:larger than 1041: 1037: 1029: 1025: 1018: 1008: 914: 910: 902: 898: 893: 889: 888:larger than 880: 876: 868: 864: 857: 847: 843: 694: 690: 686: 682: 681:larger than 678: 674: 670: 666: 662: 658: 654: 650: 646: 642: 636: 622: 621: 616: 610: 606: 602: 598: 594: 590: 586: 582: 578: 574: 571: 565: 561: 557: 553: 549: 545: 541: 537: 533: 530: 525: 521: 518: 515: 512: 508: 504: 500: 496: 493: 487: 486: 483: 357: 353: 351: 345: 341: 337: 335: 329: 325: 321: 317: 313: 309: 305: 301: 297: 293: 289: 285: 281: 277: 271: 267: 263: 259: 255: 251: 247: 243: 239: 235: 228: 226: 221: 217: 213: 209: 205: 201: 197: 193: 189: 185: 181: 177: 173: 169: 165: 161: 155: 150: 146: 142: 140: 134: 130: 124: 120: 114: 110: 99: 95: 84: 80: 76: 72: 68: 66: 57:Frank Garvan 40: 34: 2352:26 November 2230:{ 3, 3, 3 } 2216:{ 4, 3, 2 } 2202:{ 5, 2, 2 } 2199:{ 4, 4, 1 } 2188:{ 6, 2, 1 } 2068:{ 4, 4, 1 } 2057:{ 3, 3, 3 } 2051:{ 5, 3, 1 } 2048:{ 5, 2, 2 } 2034:{ 6, 2, 1 } 1949:(10, 11, 11 1431:{2,1,1,1,1} 1185:{1,1,1,1,1} 617:that . . . 446:{2,1,1,1,1} 2473:Categories 2387:: 207–210. 2279:References 2185:{ 5, 3, 1} 2000:crank ≡ 3 1993:crank ≡ 2 1979:crank ≡ 0 1941:(9, 11, 11 1933:(3, 11, 11 1925:(2, 11, 11 1917:(1, 11, 11 1909:(0, 11, 11 1510:(−1,1) = − 1211:Partition 1016:Partition 855:Partition 609:(4, 11, 11 601:(3, 11, 11 593:(2, 11, 11 585:(1, 11, 11 577:(0, 11, 11 478:{3,1,1,1} 417:rank ≡ 10 149:+ 5 and 11 2450:1406.3299 2413:1402.6644 2307:: 10–15. 2191:{ 6, 3 } 2017:{ 6, 3 } 1986:crank ≡ 1 1961:+ 6) / 11 1745:− 1737:− 1712:− 1688:− 1674:∞ 1659:∏ 1612:∞ 1607:∞ 1604:− 1594:∑ 1588:∞ 1573:∑ 1470:Notations 1414:{2,2,1,1} 1380:{3,1,1,1} 1168:{2,1,1,1} 990:{1,1,1,1} 811:λ 805:ω 792:λ 786:ω 783:− 777:λ 771:μ 755:λ 749:ω 736:λ 730:ℓ 713:λ 449:{2,2,1,1} 419:(mod 11) 412:rank ≡ 9 407:rank ≡ 8 402:rank ≡ 7 392:rank ≡ 5 387:rank ≡ 4 382:rank ≡ 3 377:rank ≡ 2 372:rank ≡ 1 367:rank ≡ 0 356:+ 6 with 231:we have: 200:+ 4) and 2205:{ 5, 4 } 2165:{ 8, 1 } 2162:{ 7, 2 } 2157:(mod 5) 2031:{ 5, 4 } 2020:{ 7, 2 } 2014:{ 8, 1 } 2009:(mod 5) 1903:+ 5) / 7 1891:(6, 7, 7 1883:(5, 7, 7 1875:(4, 7, 7 1867:(3, 7, 7 1859:(2, 7, 7 1851:(1, 7, 7 1843:(0, 7, 7 1837:+ 4) / 5 1825:(4, 5, 5 1817:(3, 5, 5 1809:(2, 5, 5 1801:(1, 5, 5 1793:(0, 5, 5 1514:(0,1) = 801:if  745:if  452:{2,2,2} 414:(mod 11) 409:(mod 11) 404:(mod 11) 399:(mod 11) 397:rank ≡ 6 394:(mod 11) 389:(mod 11) 384:(mod 11) 379:(mod 11) 374:(mod 11) 369:(mod 11) 328:(6, 7, 7 320:(5, 7, 7 312:(4, 7, 7 304:(3, 7, 7 296:(2, 7, 7 288:(1, 7, 7 280:(0, 7, 7 270:(4, 5, 5 262:(3, 5, 5 258:+ 4) = 254:(2, 5, 5 250:+ 4) = 246:(1, 5, 5 242:+ 4) = 238:(0, 5, 5 2455:Bibcode 2418:Bibcode 2150:(mod 5) 2143:(mod 5) 2136:(mod 5) 2129:(mod 5) 2002:(mod 5) 1995:(mod 5) 1988:(mod 5) 1981:(mod 5) 1953:+ 6) = 1945:+ 6) = 1929:+ 6) = 1921:+ 6) = 1913:+ 6) = 1895:+ 5) = 1887:+ 5) = 1879:+ 5) = 1871:+ 5) = 1863:+ 5) = 1855:+ 5) = 1847:+ 5) = 1829:+ 4) = 1821:+ 4) = 1813:+ 4) = 1805:+ 4) = 1797:+ 4) = 1526:modulo 1397:{2,2,2} 1363:{3,2,1} 1329:{4,1,1} 1151:{2,2,1} 1134:{3,1,1} 973:{2,1,1} 605:+ 6) = 597:+ 6) = 589:+ 6) = 581:+ 6) = 524:modulo 427:{4,1,1} 424:{3,2,1} 324:+ 5) = 316:+ 5) = 308:+ 5) = 300:+ 5) = 292:+ 5) = 284:+ 5) = 266:+ 4) = 196:, 5, 5 184:modulo 2311:  2026:{ 9 } 669:, and 645:, let 626:Vulcan 208:, 7, 7 43:of an 39:, the 2445:arXiv 2408:arXiv 2338:(PDF) 2297:(PDF) 2171:{ 9 } 1346:{3,3} 1312:{4,2} 1295:{5,1} 1264:Crank 1117:{3,2} 1100:{4,1} 1069:Crank 956:{2,2} 939:{3,1} 908:Crank 613:+ 6); 459:{3,3} 433:{5,1} 430:{4,2} 274:+ 4). 41:crank 2354:2012 2309:ISBN 817:> 572:that 548:) = 531:that 332:+ 5) 216:and 67:Let 55:and 2385:XIX 2379:". 2348:(2) 1957:(11 1546:). 1460:−6 1443:−4 1426:−2 1392:−3 1341:−1 1278:{6} 1197:−5 1180:−3 1146:−1 1083:{5} 1002:−4 985:−2 922:{4} 438:{6} 133:(11 35:In 2475:: 2453:. 2443:. 2441:84 2439:. 2416:. 2406:. 2402:. 2383:. 2346:18 2340:. 2323:^ 2303:. 2299:. 1899:(7 1833:(5 1409:2 1375:1 1358:3 1324:4 1307:0 1290:6 1273:) 1163:1 1129:3 1112:0 1095:5 1078:) 968:2 951:0 934:4 917:) 820:0. 657:, 628:. 568:); 564:, 560:, 556:− 544:, 540:, 526:q; 511:) 507:, 503:, 224:. 172:, 168:, 123:(7 113:(5 106:. 2461:. 2457:: 2447:: 2424:. 2420:: 2410:: 2404:6 2377:n 2373:n 2371:( 2369:p 2356:. 2317:. 2305:8 1959:n 1955:p 1951:n 1947:M 1943:n 1939:M 1935:n 1931:M 1927:n 1923:M 1919:n 1915:M 1911:n 1907:M 1901:n 1897:p 1893:n 1889:M 1885:n 1881:M 1877:n 1873:M 1869:n 1865:M 1861:n 1857:M 1853:n 1849:M 1845:n 1841:M 1835:n 1831:p 1827:n 1823:M 1819:n 1815:M 1811:n 1807:M 1803:n 1799:M 1795:n 1791:M 1763:) 1758:n 1754:q 1748:1 1741:z 1734:1 1731:( 1728:) 1723:n 1719:q 1715:z 1709:1 1706:( 1701:) 1696:n 1692:q 1685:1 1682:( 1669:1 1666:= 1663:n 1655:= 1650:n 1646:q 1640:m 1636:z 1632:) 1629:n 1626:, 1623:m 1620:( 1617:M 1601:= 1598:m 1583:0 1580:= 1577:n 1559:n 1557:, 1555:m 1553:( 1551:M 1544:n 1542:, 1540:q 1538:, 1536:m 1534:( 1532:M 1528:q 1524:m 1520:n 1516:M 1512:M 1508:M 1504:n 1500:n 1498:, 1496:m 1494:( 1492:M 1488:m 1484:n 1480:m 1476:n 1457:0 1454:6 1451:1 1440:0 1437:4 1434:2 1423:0 1420:2 1417:2 1406:3 1403:0 1400:2 1389:0 1386:3 1383:3 1372:2 1369:1 1366:3 1355:2 1352:0 1349:3 1338:1 1335:2 1332:4 1321:2 1318:0 1315:4 1304:1 1301:1 1298:5 1287:1 1284:0 1281:6 1271:λ 1269:( 1267:c 1261:) 1259:λ 1257:( 1255:μ 1252:) 1250:λ 1248:( 1246:ω 1239:) 1237:λ 1235:( 1233:ω 1227:) 1225:λ 1223:( 1221:ℓ 1214:λ 1194:0 1191:5 1188:1 1177:0 1174:3 1171:2 1160:2 1157:1 1154:2 1143:1 1140:2 1137:3 1126:2 1123:0 1120:3 1109:1 1106:1 1103:4 1092:1 1089:0 1086:5 1076:λ 1074:( 1072:c 1066:) 1064:λ 1062:( 1060:μ 1057:) 1055:λ 1053:( 1051:ω 1044:) 1042:λ 1040:( 1038:ω 1032:) 1030:λ 1028:( 1026:ℓ 1019:λ 999:0 996:4 993:1 982:0 979:2 976:2 965:2 962:0 959:2 948:1 945:1 942:3 931:1 928:0 925:4 915:λ 913:( 911:c 905:) 903:λ 901:( 899:μ 896:) 894:λ 892:( 890:ω 883:) 881:λ 879:( 877:ω 871:) 869:λ 867:( 865:ℓ 858:λ 814:) 808:( 795:) 789:( 780:) 774:( 764:0 761:= 758:) 752:( 739:) 733:( 724:{ 719:= 716:) 710:( 707:c 695:λ 693:( 691:c 687:λ 685:( 683:ω 679:λ 675:λ 673:( 671:μ 667:λ 663:λ 661:( 659:ω 655:λ 651:λ 649:( 647:ℓ 643:λ 611:n 607:M 603:n 599:M 595:n 591:M 587:n 583:M 579:n 575:M 566:n 562:q 558:m 554:q 552:( 550:M 546:n 542:q 538:m 536:( 534:M 522:m 516:n 509:n 505:q 501:m 499:( 497:M 358:n 354:n 346:n 342:n 338:n 330:n 326:N 322:n 318:N 314:n 310:N 306:n 302:N 298:n 294:N 290:n 286:N 282:n 278:N 272:n 268:N 264:n 260:N 256:n 252:N 248:n 244:N 240:n 236:N 229:n 218:m 214:n 210:n 206:m 204:( 202:N 198:n 194:m 192:( 190:N 186:q 182:m 178:n 174:n 170:q 166:m 164:( 162:N 151:n 147:n 143:n 135:n 131:p 125:n 121:p 115:n 111:p 100:n 98:( 96:p 85:p 83:( 81:n 77:n 75:( 73:p 69:n 20:)

Index

Crank (mathematics)

number theory
integer partition
Freeman Dyson
George E. Andrews
Frank Garvan
Srinivasa Ramanujan
partition function
Ramanujan congruences
rank of a partition
Vulcan
Bruce C. Berndt
"Some Guesses in The Theory of Partitions"
ISBN
9780821805619



"Dyson's crank of a partition"
arXiv
1402.6644
Bibcode
2014arXiv1402.6644S
arXiv
1406.3299
Bibcode
2014arXiv1406.3299S
Categories
Integer partitions

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