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Toda bracket

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showed that every element of the stable homotopy groups of spheres can be expressed using composition products and higher Toda brackets in terms of certain well known elements, called Hopf elements.
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of these elements. The Toda bracket is not quite an element of a stable homotopy group, because it is only defined up to addition of composition products of certain other elements.
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is not uniquely defined up to homotopy, because there was some choice in choosing the maps from the cones. Changing these maps changes the Toda bracket by adding elements of
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are permanent cycles. Moreover, these Massey products have a lift to a motivic Adams spectral sequence giving an element in the Toda bracket
1052:, where multiplication (called composition product) is given by composition of representing maps, and any element of non-zero degree is 953:
There are also higher Toda brackets of several elements, defined when suitable lower Toda brackets vanish. This parallels the theory of
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used the composition product and Toda brackets to label many of the elements of homotopy groups.
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There is a convergence theorem originally due to Moss which states that special Massey products
1552: 1372: 1340: 1142: 1110: 1323:{\displaystyle W{\stackrel {f}{\ \to \ }}X{\stackrel {g}{\ \to \ }}Y{\stackrel {h}{\ \to \ }}Z} 139:{\displaystyle W{\stackrel {f}{\ \to \ }}X{\stackrel {g}{\ \to \ }}Y{\stackrel {h}{\ \to \ }}Z} 2517: 2485: 2431: 2402: 2311: 1771: 452: 323: 181: 155: 2475: 2465: 2423: 2392: 2368: 2303: 2531: 2497: 2445: 2388: 2244: 2109: 2035: 1591: 1404: 2527: 2493: 2441: 2419: 2384: 732: 231: 1701: 954: 915: 877: 819: 799: 779: 755: 618: 598: 523: 349: 258: 211: 2397: 697: 2542: 2323: 205: 2505: 2453: 1213: 25: 2337:
Isaksen, Daniel C.; Wang, Guozhen; Xu, Zhouli (2020-06-17). "More stable stems".
2456:(1973), "The nilpotency of elements of the stable homotopy groups of spheres", 958: 2489: 2315: 2470: 1053: 2406: 28:, who defined them and used them to compute homotopy groups of spheres in ( 1883:{\displaystyle C_{f}{\stackrel {q}{\ \to \ }}W{\stackrel {b}{\ \to \ }}Z} 1688:{\displaystyle X{\stackrel {i}{\ \to \ }}C_{f}{\stackrel {a}{\ \to \ }}Y} 317: 2480: 2427: 2380: 2307: 2291: 2372: 2343: 1232:
the Toda bracket can be defined as follows. Again, suppose that
1034:{\displaystyle \pi _{\ast }^{S}=\bigoplus _{k\geq 0}\pi _{k}^{S}} 2357:
Cohen, Joel M. (1968), "The decomposition of stable homotopy.",
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contain a permanent cycle, meaning has an associated element in
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Stable homotopy groups of spheres. A computer-assisted approach
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is an operation on homotopy classes of maps, in particular on
2418:, Lecture Notes in Mathematics, vol. 1423, Berlin: 2292:"Secondary compositions and the Adams spectral sequence" 2169:{\displaystyle \langle \alpha ,\beta ,\gamma \rangle } 965:
The Toda bracket for stable homotopy groups of spheres
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The Toda bracket for general triangulated categories
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is a sequence of maps between spaces, such that the
684:{\displaystyle \langle f,g,h\rangle \colon SW\to Z} 2265: 2233: 2201: 2168: 2130: 2098: 2051: 2024: 1978: 1931: 1882: 1786: 1760: 1710: 1687: 1607: 1573: 1538: 1420: 1393: 1361: 1322: 1204: 1163: 1131: 1099: 1033: 942: 904: 866: 828: 808: 788: 764: 744: 721: 683: 627: 607: 583: 532: 512: 467: 441: 402: 358: 338: 305: 267: 243: 220: 196: 170: 138: 2510:Composition methods in homotopy groups of spheres 729:of homotopy classes of maps from the suspension 346:to a trivial map, which when post-composed with 2512:, Annals of Mathematics Studies, vol. 49, 1044:of the stable homotopy groups of spheres is a 2414:Kochman, Stanley O. (1990), "Toda brackets", 8: 2458:Journal of the Mathematical Society of Japan 2163: 2145: 2019: 2001: 1926: 1908: 1199: 1181: 861: 843: 663: 645: 475:to a trivial map, which when composed with 2099:{\displaystyle \pi _{*}^{s}(\mathbb {S} )} 1761:{\displaystyle h\circ a\circ i=h\circ g=0} 584:{\displaystyle G\circ C_{f}\colon CW\to Z} 2479: 2469: 2396: 2342: 2246: 2214: 2187: 2181: 2143: 2111: 2089: 2088: 2079: 2074: 2068: 2043: 2037: 1999: 1979:{\displaystyle \operatorname {hom} (W,Z)} 1944: 1906: 1869: 1858: 1856: 1855: 1835: 1824: 1822: 1821: 1815: 1809: 1773: 1723: 1703: 1674: 1663: 1661: 1660: 1654: 1642: 1631: 1629: 1628: 1623: 1599: 1593: 1554: 1516: 1505: 1503: 1502: 1496: 1484: 1473: 1471: 1470: 1459: 1448: 1446: 1445: 1440: 1412: 1406: 1374: 1342: 1309: 1298: 1296: 1295: 1284: 1273: 1271: 1270: 1259: 1248: 1246: 1245: 1240: 1179: 1144: 1112: 1091: 1086: 1080: 1025: 1020: 1004: 991: 986: 980: 917: 879: 841: 821: 801: 781: 757: 734: 699: 643: 620: 600: 560: 548: 525: 486: 480: 454: 419: 374: 351: 325: 283: 260: 233: 213: 183: 157: 125: 114: 112: 111: 100: 89: 87: 86: 75: 64: 62: 61: 56: 2282: 1057: 41: 2234:{\displaystyle \alpha ,\beta ,\gamma } 403:{\displaystyle h\circ F\colon CW\to Z} 2025:{\displaystyle \langle a,b,c\rangle } 1932:{\displaystyle \langle f,g,h\rangle } 1217: 1205:{\displaystyle \langle f,g,h\rangle } 867:{\displaystyle \langle f,g,h\rangle } 694:representing an element in the group 48:) for more information. Suppose that 7: 513:{\displaystyle C_{f}\colon CW\to CX} 45: 29: 275:. Then we get a (non-unique) map 2290:Moss, R. Michael F. (1970-08-01). 1901:is (a choice of) the Toda bracket 414:Similarly we get a non-unique map 14: 1100:{\displaystyle \pi _{\ast }^{S}} 1432:so we obtain an exact triangle 1333:is a sequence of morphism in a 442:{\displaystyle G\colon CX\to Z} 306:{\displaystyle F\colon CW\to Y} 2093: 2085: 1973: 1964: 1958: 1952: 1862: 1852: 1846: 1828: 1667: 1635: 1533: 1527: 1509: 1477: 1452: 1302: 1277: 1252: 934: 919: 899: 884: 716: 701: 675: 595:By joining these two cones on 575: 501: 433: 394: 297: 118: 93: 68: 1: 449:induced by a homotopy from 2565: 2514:Princeton University Press 2202:{\displaystyle \pi _{*,*}} 1574:{\displaystyle g\circ f=0} 1394:{\displaystyle h\circ g=0} 1362:{\displaystyle g\circ f=0} 1164:{\displaystyle g\cdot h=0} 1132:{\displaystyle f\cdot g=0} 615:and the maps from them to 22:homotopy groups of spheres 2296:Mathematische Zeitschrift 1228:In the case of a general 2106:, assuming the elements 1787:{\displaystyle h\circ a} 468:{\displaystyle h\circ g} 339:{\displaystyle g\circ f} 197:{\displaystyle h\circ g} 171:{\displaystyle g\circ f} 2061:Adams spectral sequence 2267: 2235: 2203: 2170: 2132: 2100: 2053: 2026: 1980: 1933: 1884: 1795:factors (non-uniquely) 1788: 1762: 1712: 1689: 1609: 1586:factors (non-uniquely) 1575: 1540: 1422: 1395: 1363: 1324: 1206: 1165: 1133: 1101: 1035: 944: 906: 868: 830: 810: 790: 766: 746: 723: 685: 629: 609: 585: 540:, gives another map, 534: 520:, the cone of the map 514: 469: 443: 404: 360: 340: 307: 269: 245: 222: 198: 172: 140: 2471:10.2969/jmsj/02540707 2360:Annals of Mathematics 2268: 2266:{\displaystyle a,b,c} 2236: 2204: 2171: 2133: 2131:{\displaystyle a,b,c} 2101: 2054: 2052:{\displaystyle E_{r}} 2027: 1981: 1934: 1885: 1789: 1763: 1718:. Then, the relation 1713: 1690: 1610: 1608:{\displaystyle C_{f}} 1576: 1541: 1423: 1421:{\displaystyle C_{f}} 1396: 1364: 1335:triangulated category 1325: 1230:triangulated category 1207: 1166: 1134: 1102: 1036: 945: 907: 869: 831: 811: 791: 767: 747: 724: 686: 630: 610: 586: 535: 515: 470: 444: 405: 361: 341: 308: 270: 246: 223: 199: 173: 141: 2245: 2213: 2180: 2142: 2110: 2067: 2036: 1998: 1943: 1905: 1808: 1772: 1722: 1702: 1622: 1592: 1553: 1439: 1405: 1373: 1341: 1239: 1178: 1143: 1111: 1079: 979: 916: 878: 840: 820: 800: 780: 756: 733: 698: 642: 619: 599: 547: 524: 479: 453: 418: 373: 350: 324: 282: 259: 232: 212: 182: 156: 55: 16:In mathematics, the 2084: 2032:of elements in the 1990:Convergence theorem 1428:denote the cone of 1096: 1030: 996: 2428:10.1007/BFb0083797 2422:, pp. 12–34, 2308:10.1007/BF01129978 2263: 2231: 2199: 2166: 2128: 2096: 2070: 2049: 2022: 1976: 1929: 1880: 1784: 1758: 1708: 1685: 1605: 1571: 1536: 1418: 1391: 1359: 1320: 1202: 1161: 1129: 1097: 1082: 1031: 1016: 1015: 982: 940: 902: 864: 826: 806: 786: 762: 745:{\displaystyle SW} 742: 719: 681: 625: 605: 581: 530: 510: 465: 439: 400: 356: 336: 303: 265: 244:{\displaystyle CA} 241: 218: 194: 168: 136: 2523:978-0-691-09586-8 2437:978-3-540-52468-7 2363:, Second Series, 1874: 1867: 1861: 1840: 1833: 1827: 1711:{\displaystyle a} 1679: 1672: 1666: 1647: 1640: 1634: 1521: 1514: 1508: 1489: 1482: 1476: 1464: 1457: 1451: 1314: 1307: 1301: 1289: 1282: 1276: 1264: 1257: 1251: 1000: 943:{\displaystyle f} 905:{\displaystyle h} 829:{\displaystyle h} 809:{\displaystyle g} 789:{\displaystyle f} 765:{\displaystyle Z} 628:{\displaystyle Z} 608:{\displaystyle W} 533:{\displaystyle f} 359:{\displaystyle h} 268:{\displaystyle A} 221:{\displaystyle A} 130: 123: 117: 105: 98: 92: 80: 73: 67: 2556: 2534: 2500: 2483: 2473: 2448: 2409: 2400: 2349: 2348: 2346: 2334: 2328: 2327: 2287: 2272: 2270: 2269: 2264: 2240: 2238: 2237: 2232: 2208: 2206: 2205: 2200: 2198: 2197: 2175: 2173: 2172: 2167: 2137: 2135: 2134: 2129: 2105: 2103: 2102: 2097: 2092: 2083: 2078: 2058: 2056: 2055: 2050: 2048: 2047: 2031: 2029: 2028: 2023: 1985: 1983: 1982: 1977: 1938: 1936: 1935: 1930: 1889: 1887: 1886: 1881: 1876: 1875: 1873: 1868: 1865: 1859: 1857: 1842: 1841: 1839: 1834: 1831: 1825: 1823: 1820: 1819: 1793: 1791: 1790: 1785: 1767: 1765: 1764: 1759: 1717: 1715: 1714: 1709: 1694: 1692: 1691: 1686: 1681: 1680: 1678: 1673: 1670: 1664: 1662: 1659: 1658: 1649: 1648: 1646: 1641: 1638: 1632: 1630: 1614: 1612: 1611: 1606: 1604: 1603: 1580: 1578: 1577: 1572: 1545: 1543: 1542: 1537: 1523: 1522: 1520: 1515: 1512: 1506: 1504: 1501: 1500: 1491: 1490: 1488: 1483: 1480: 1474: 1472: 1466: 1465: 1463: 1458: 1455: 1449: 1447: 1427: 1425: 1424: 1419: 1417: 1416: 1400: 1398: 1397: 1392: 1368: 1366: 1365: 1360: 1329: 1327: 1326: 1321: 1316: 1315: 1313: 1308: 1305: 1299: 1297: 1291: 1290: 1288: 1283: 1280: 1274: 1272: 1266: 1265: 1263: 1258: 1255: 1249: 1247: 1211: 1209: 1208: 1203: 1170: 1168: 1167: 1162: 1138: 1136: 1135: 1130: 1106: 1104: 1103: 1098: 1095: 1090: 1075:are elements of 1046:supercommutative 1040: 1038: 1037: 1032: 1029: 1024: 1014: 995: 990: 949: 947: 946: 941: 911: 909: 908: 903: 873: 871: 870: 865: 835: 833: 832: 827: 815: 813: 812: 807: 795: 793: 792: 787: 771: 769: 768: 763: 751: 749: 748: 743: 728: 726: 725: 722:{\displaystyle } 720: 690: 688: 687: 682: 635:, we get a map 634: 632: 631: 626: 614: 612: 611: 606: 590: 588: 587: 582: 565: 564: 539: 537: 536: 531: 519: 517: 516: 511: 491: 490: 474: 472: 471: 466: 448: 446: 445: 440: 409: 407: 406: 401: 365: 363: 362: 357: 345: 343: 342: 337: 312: 310: 309: 304: 274: 272: 271: 266: 250: 248: 247: 242: 227: 225: 224: 219: 208:. Given a space 203: 201: 200: 195: 177: 175: 174: 169: 145: 143: 142: 137: 132: 131: 129: 124: 121: 115: 113: 107: 106: 104: 99: 96: 90: 88: 82: 81: 79: 74: 71: 65: 63: 2564: 2563: 2559: 2558: 2557: 2555: 2554: 2553: 2549:Homotopy theory 2539: 2538: 2524: 2504: 2452: 2438: 2420:Springer-Verlag 2413: 2373:10.2307/1970586 2356: 2353: 2352: 2336: 2335: 2331: 2289: 2288: 2284: 2279: 2243: 2242: 2211: 2210: 2183: 2178: 2177: 2140: 2139: 2108: 2107: 2065: 2064: 2039: 2034: 2033: 1996: 1995: 1992: 1941: 1940: 1903: 1902: 1811: 1806: 1805: 1770: 1769: 1720: 1719: 1700: 1699: 1650: 1620: 1619: 1595: 1590: 1589: 1551: 1550: 1492: 1437: 1436: 1408: 1403: 1402: 1371: 1370: 1339: 1338: 1237: 1236: 1226: 1176: 1175: 1141: 1140: 1109: 1108: 1077: 1076: 977: 976: 967: 955:Massey products 914: 913: 876: 875: 838: 837: 818: 817: 798: 797: 778: 777: 754: 753: 731: 730: 696: 695: 640: 639: 617: 616: 597: 596: 556: 545: 544: 522: 521: 482: 477: 476: 451: 450: 416: 415: 371: 370: 348: 347: 322: 321: 280: 279: 257: 256: 230: 229: 210: 209: 180: 179: 154: 153: 53: 52: 38: 12: 11: 5: 2562: 2560: 2552: 2551: 2541: 2540: 2537: 2536: 2522: 2502: 2464:(4): 707–732, 2450: 2436: 2411: 2367:(2): 305–320, 2351: 2350: 2329: 2302:(4): 283–310. 2281: 2280: 2278: 2275: 2262: 2259: 2256: 2253: 2250: 2230: 2227: 2224: 2221: 2218: 2196: 2193: 2190: 2186: 2165: 2162: 2159: 2156: 2153: 2150: 2147: 2127: 2124: 2121: 2118: 2115: 2095: 2091: 2087: 2082: 2077: 2073: 2046: 2042: 2021: 2018: 2015: 2012: 2009: 2006: 2003: 1991: 1988: 1975: 1972: 1969: 1966: 1963: 1960: 1957: 1954: 1951: 1948: 1928: 1925: 1922: 1919: 1916: 1913: 1910: 1891: 1890: 1879: 1872: 1864: 1854: 1851: 1848: 1845: 1838: 1830: 1818: 1814: 1783: 1780: 1777: 1757: 1754: 1751: 1748: 1745: 1742: 1739: 1736: 1733: 1730: 1727: 1707: 1696: 1695: 1684: 1677: 1669: 1657: 1653: 1645: 1637: 1627: 1602: 1598: 1570: 1567: 1564: 1561: 1558: 1547: 1546: 1535: 1532: 1529: 1526: 1519: 1511: 1499: 1495: 1487: 1479: 1469: 1462: 1454: 1444: 1415: 1411: 1390: 1387: 1384: 1381: 1378: 1358: 1355: 1352: 1349: 1346: 1331: 1330: 1319: 1312: 1304: 1294: 1287: 1279: 1269: 1262: 1254: 1244: 1225: 1222: 1201: 1198: 1195: 1192: 1189: 1186: 1183: 1160: 1157: 1154: 1151: 1148: 1128: 1125: 1122: 1119: 1116: 1094: 1089: 1085: 1042: 1041: 1028: 1023: 1019: 1013: 1010: 1007: 1003: 999: 994: 989: 985: 966: 963: 939: 936: 933: 930: 927: 924: 921: 901: 898: 895: 892: 889: 886: 883: 863: 860: 857: 854: 851: 848: 845: 825: 805: 785: 761: 741: 738: 718: 715: 712: 709: 706: 703: 692: 691: 680: 677: 674: 671: 668: 665: 662: 659: 656: 653: 650: 647: 624: 604: 593: 592: 580: 577: 574: 571: 568: 563: 559: 555: 552: 529: 509: 506: 503: 500: 497: 494: 489: 485: 464: 461: 458: 438: 435: 432: 429: 426: 423: 412: 411: 399: 396: 393: 390: 387: 384: 381: 378: 355: 335: 332: 329: 314: 313: 302: 299: 296: 293: 290: 287: 264: 240: 237: 217: 193: 190: 187: 167: 164: 161: 147: 146: 135: 128: 120: 110: 103: 95: 85: 78: 70: 60: 37: 34: 24:, named after 13: 10: 9: 6: 4: 3: 2: 2561: 2550: 2547: 2546: 2544: 2533: 2529: 2525: 2519: 2515: 2511: 2507: 2506:Toda, Hiroshi 2503: 2499: 2495: 2491: 2487: 2482: 2477: 2472: 2467: 2463: 2459: 2455: 2454:Nishida, Goro 2451: 2447: 2443: 2439: 2433: 2429: 2425: 2421: 2417: 2412: 2408: 2404: 2399: 2394: 2390: 2386: 2382: 2378: 2374: 2370: 2366: 2362: 2361: 2355: 2354: 2345: 2340: 2333: 2330: 2325: 2321: 2317: 2313: 2309: 2305: 2301: 2297: 2293: 2286: 2283: 2276: 2274: 2260: 2257: 2254: 2251: 2248: 2228: 2225: 2222: 2219: 2216: 2209:for elements 2194: 2191: 2188: 2184: 2160: 2157: 2154: 2151: 2148: 2125: 2122: 2119: 2116: 2113: 2080: 2075: 2071: 2062: 2059:-page of the 2044: 2040: 2016: 2013: 2010: 2007: 2004: 1989: 1987: 1970: 1967: 1961: 1955: 1949: 1946: 1939:in the group 1923: 1920: 1917: 1914: 1911: 1900: 1896: 1877: 1870: 1849: 1843: 1836: 1816: 1812: 1804: 1803: 1802: 1800: 1796: 1781: 1778: 1775: 1768:implies that 1755: 1752: 1749: 1746: 1743: 1740: 1737: 1734: 1731: 1728: 1725: 1705: 1682: 1675: 1655: 1651: 1643: 1625: 1618: 1617: 1616: 1600: 1596: 1587: 1584: 1581:implies that 1568: 1565: 1562: 1559: 1556: 1549:The relation 1530: 1524: 1517: 1497: 1493: 1485: 1467: 1460: 1442: 1435: 1434: 1433: 1431: 1413: 1409: 1388: 1385: 1382: 1379: 1376: 1356: 1353: 1350: 1347: 1344: 1336: 1317: 1310: 1292: 1285: 1267: 1260: 1242: 1235: 1234: 1233: 1231: 1223: 1221: 1219: 1215: 1196: 1193: 1190: 1187: 1184: 1174: 1171:, there is a 1158: 1155: 1152: 1149: 1146: 1126: 1123: 1120: 1117: 1114: 1092: 1087: 1083: 1074: 1070: 1066: 1061: 1059: 1055: 1051: 1047: 1026: 1021: 1017: 1011: 1008: 1005: 1001: 997: 992: 987: 983: 975: 974: 973: 972: 964: 962: 960: 956: 951: 937: 931: 928: 925: 922: 896: 893: 890: 887: 881: 858: 855: 852: 849: 846: 823: 803: 783: 775: 772:, called the 759: 739: 736: 713: 710: 707: 704: 678: 672: 669: 666: 660: 657: 654: 651: 648: 638: 637: 636: 622: 602: 578: 572: 569: 566: 561: 557: 553: 550: 543: 542: 541: 527: 507: 504: 498: 495: 492: 487: 483: 462: 459: 456: 436: 430: 427: 424: 421: 397: 391: 388: 385: 382: 379: 376: 369: 368: 367: 366:gives a map 353: 333: 330: 327: 319: 316:induced by a 300: 294: 291: 288: 285: 278: 277: 276: 262: 254: 238: 235: 215: 207: 206:nullhomotopic 191: 188: 185: 165: 162: 159: 152: 133: 126: 108: 101: 83: 76: 58: 51: 50: 49: 47: 43: 35: 33: 31: 27: 23: 19: 2509: 2461: 2457: 2415: 2364: 2358: 2332: 2299: 2295: 2285: 1993: 1898: 1894: 1892: 1798: 1697: 1582: 1548: 1429: 1332: 1227: 1218:Cohen (1968) 1214:Hiroshi Toda 1173:Toda bracket 1172: 1072: 1068: 1064: 1062: 1058:Nishida 1973 1043: 968: 952: 774:Toda bracket 773: 693: 594: 413: 315: 151:compositions 148: 42:Kochman 1990 39: 26:Hiroshi Toda 18:Toda bracket 17: 15: 2481:2433/220059 251:denote the 2344:2001.04511 2277:References 1337:such that 971:direct sum 959:cohomology 836:. The map 36:Definition 2490:0025-5645 2324:122909581 2316:1432-1823 2229:γ 2223:β 2217:α 2195:∗ 2189:∗ 2185:π 2164:⟩ 2161:γ 2155:β 2149:α 2146:⟨ 2076:∗ 2072:π 2020:⟩ 2002:⟨ 1950:⁡ 1927:⟩ 1909:⟨ 1893:for some 1863:→ 1829:→ 1779:∘ 1747:∘ 1735:∘ 1729:∘ 1698:for some 1668:→ 1636:→ 1560:∘ 1510:→ 1478:→ 1453:→ 1380:∘ 1348:∘ 1303:→ 1278:→ 1253:→ 1200:⟩ 1182:⟨ 1150:⋅ 1118:⋅ 1088:∗ 1084:π 1054:nilpotent 1018:π 1009:≥ 1002:⨁ 988:∗ 984:π 862:⟩ 844:⟨ 676:→ 667:: 664:⟩ 646:⟨ 576:→ 567:: 554:∘ 502:→ 493:: 460:∘ 434:→ 425:: 395:→ 386:: 380:∘ 331:∘ 298:→ 289:: 204:are both 189:∘ 163:∘ 119:→ 94:→ 69:→ 46:Toda 1962 30:Toda 1962 2543:Category 2508:(1962), 2407:16591550 2241:lifting 1797:through 1588:through 318:homotopy 2532:0143217 2498:0341485 2446:1052407 2389:0231377 2381:1970586 1897:. This 1048:graded 2530:  2520:  2496:  2488:  2444:  2434:  2405:  2398:224450 2395:  2387:  2379:  2322:  2314:  1866:  1860:  1832:  1826:  1671:  1665:  1639:  1633:  1513:  1507:  1481:  1475:  1456:  1450:  1401:. Let 1306:  1300:  1281:  1275:  1256:  1250:  816:, and 228:, let 122:  116:  97:  91:  72:  66:  44:) or ( 2377:JSTOR 2339:arXiv 2320:S2CID 1107:with 320:from 40:See ( 2518:ISBN 2486:ISSN 2432:ISBN 2403:PMID 2312:ISSN 1801:as 1615:as 1369:and 1139:and 1071:and 1067:and 1050:ring 969:The 912:and 253:cone 178:and 2476:hdl 2466:doi 2424:doi 2393:PMC 2369:doi 2304:doi 2300:115 2176:in 1947:hom 1063:If 1060:). 957:in 776:of 752:to 255:of 32:). 2545:: 2528:MR 2526:, 2516:, 2494:MR 2492:, 2484:, 2474:, 2462:25 2460:, 2442:MR 2440:, 2430:, 2401:, 2391:, 2385:MR 2383:, 2375:, 2365:87 2318:. 2310:. 2298:. 2294:. 2273:. 1986:. 961:. 950:. 796:, 2535:. 2501:. 2478:: 2468:: 2449:. 2426:: 2410:. 2371:: 2347:. 2341:: 2326:. 2306:: 2261:c 2258:, 2255:b 2252:, 2249:a 2226:, 2220:, 2192:, 2158:, 2152:, 2126:c 2123:, 2120:b 2117:, 2114:a 2094:) 2090:S 2086:( 2081:s 2045:r 2041:E 2017:c 2014:, 2011:b 2008:, 2005:a 1974:) 1971:Z 1968:, 1965:] 1962:1 1959:[ 1956:W 1953:( 1924:h 1921:, 1918:g 1915:, 1912:f 1899:b 1895:b 1878:Z 1871:b 1853:] 1850:1 1847:[ 1844:W 1837:q 1817:f 1813:C 1799:W 1782:a 1776:h 1756:0 1753:= 1750:g 1744:h 1741:= 1738:i 1732:a 1726:h 1706:a 1683:Y 1676:a 1656:f 1652:C 1644:i 1626:X 1601:f 1597:C 1583:g 1569:0 1566:= 1563:f 1557:g 1534:] 1531:1 1528:[ 1525:W 1518:q 1498:f 1494:C 1486:i 1468:X 1461:f 1443:W 1430:f 1414:f 1410:C 1389:0 1386:= 1383:g 1377:h 1357:0 1354:= 1351:f 1345:g 1318:Z 1311:h 1293:Y 1286:g 1268:X 1261:f 1243:W 1197:h 1194:, 1191:g 1188:, 1185:f 1159:0 1156:= 1153:h 1147:g 1127:0 1124:= 1121:g 1115:f 1093:S 1073:h 1069:g 1065:f 1056:( 1027:S 1022:k 1012:0 1006:k 998:= 993:S 938:f 935:] 932:Z 929:, 926:X 923:S 920:[ 900:] 897:Y 894:, 891:W 888:S 885:[ 882:h 859:h 856:, 853:g 850:, 847:f 824:h 804:g 784:f 760:Z 740:W 737:S 717:] 714:Z 711:, 708:W 705:S 702:[ 679:Z 673:W 670:S 661:h 658:, 655:g 652:, 649:f 623:Z 603:W 591:. 579:Z 573:W 570:C 562:f 558:C 551:G 528:f 508:X 505:C 499:W 496:C 488:f 484:C 463:g 457:h 437:Z 431:X 428:C 422:G 410:. 398:Z 392:W 389:C 383:F 377:h 354:h 334:f 328:g 301:Y 295:W 292:C 286:F 263:A 239:A 236:C 216:A 192:g 186:h 166:f 160:g 134:Z 127:h 109:Y 102:g 84:X 77:f 59:W

Index

homotopy groups of spheres
Hiroshi Toda
Toda 1962
Kochman 1990
Toda 1962
compositions
nullhomotopic
cone
homotopy
Massey products
cohomology
direct sum
supercommutative
ring
nilpotent
Nishida 1973
Hiroshi Toda
Cohen (1968)
triangulated category
triangulated category
factors (non-uniquely)
factors (non-uniquely)
Adams spectral sequence
"Secondary compositions and the Adams spectral sequence"
doi
10.1007/BF01129978
ISSN
1432-1823
S2CID
122909581

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