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Centrosymmetric matrix

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2232: 20: 1042:, it has been shown that bisymmetric matrices are precisely those symmetric matrices whose eigenvalues remain the same aside from possible sign changes following pre- or post-multiplication by the exchange matrix. A similar result holds for 931: 201: 505: 338: 420: 778: 811: 84: 427: 229: 1890: 369: 1133:"A spectral characterization of generalized real symmetric centrosymmetric and generalized real symmetric skew-centrosymmetric matrices" 2104: 1323: 2195: 1195:
Yasuda, Mark (2003). "A Spectral Characterization of Hermitian Centrosymmetric and Hermitian Skew-Centrosymmetric K-Matrices".
1256:
Weaver, James R. (1985). "Centrosymmetric (cross-symmetric) matrices, their basic properties, eigenvalues, and eigenvectors".
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This article is about a matrix symmetric about its center. For a matrix symmetric about its diagonal, see
1754: 1226: 1910: 1432: 2014: 1885: 1799: 258: 2119: 2009: 1717: 1397: 2268: 2154: 2083: 1965: 1825: 1422: 1309: 2024: 1607: 1238: 926:{\displaystyle A_{i,\,j}=-A_{n-i+1,\,n-j+1}\quad {\text{for all }}i,j\in \{1,\,\ldots ,\,n\}.} 1970: 1707: 1557: 1552: 1387: 1362: 1357: 196:{\displaystyle A_{i,\,j}=A_{n-i+1,\,n-j+1}\quad {\text{for all }}i,j\in \{1,\,\ldots ,\,n\}.} 2164: 1522: 1352: 1332: 51: 43: 1291: 500:{\displaystyle {\begin{bmatrix}a&b&c\\d&e&d\\c&b&a\end{bmatrix}}.} 8: 2185: 2159: 1737: 1542: 1532: 620: 544: 1164:"Characterization and properties of matrices with generalized symmetry or skew symmetry" 333:{\displaystyle J_{i,\,j}={\begin{cases}1,&i+j=n+1\\0,&i+j\neq n+1\\\end{cases}}} 2236: 2190: 2180: 2134: 2129: 2058: 1994: 1860: 1597: 1592: 1527: 1517: 1382: 1273: 1231: 1031: 699: 1081: 1068:
Yasuda, Mark (2012). "Some properties of commuting and anti-commuting m-involutions".
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Symmetry pattern of a centrosymmetric 5 × 5 matrix
752: 424:
All 3 × 3 centrosymmetric matrices have the form
366:
All 2 × 2 centrosymmetric matrices have the form
326: 436: 378: 814: 731: 519: 430: 372: 232: 87: 1010:. The inverse problem for the commutation relation 1046:centrosymmetric and skew-centrosymmetric matrices. 1230: 925: 772: 499: 414: 332: 195: 2260: 964:lends itself to a natural generalization, where 773:{\displaystyle {\frac {m^{2}+m{\bmod {2}}}{2}}.} 655:can each be chosen so that they satisfy either 1030:centrosymmetric matrices are sometimes called 1317: 597:is also centrosymmetric, it follows that the 917: 897: 709:The maximum number of unique elements in an 187: 167: 79:is centrosymmetric when its entries satisfy 951:is the exchange matrix defined previously. 1891:Fundamental (linear differential equation) 1324: 1310: 694:is a centrosymmetric matrix with distinct 1179: 1130: 1112: 913: 906: 861: 826: 244: 183: 176: 131: 99: 1233:A Treatise on the Theory of Determinants 1126: 1124: 18: 2196:Matrix representation of conic sections 2261: 1255: 1194: 1161: 1094: 1067: 1063: 1061: 1059: 54:which is symmetric about its center. 1305: 1188: 1121: 785: 1225: 640:is a centrosymmetric matrix with an 57: 1056: 13: 1331: 1219: 1155: 1097:"Eigenvectors of certain matrices" 520:Algebraic structure and properties 14: 2285: 1285: 1131:Tao, David; Yasuda, Mark (2002). 1088: 1020:that commute with a fixed matrix 16:Matrix symmetric about its center 2230: 543:centrosymmetric matrices over a 2098:Used in science and engineering 986:) or, more generally, a matrix 879: 149: 1341:Explicitly constrained entries 1016:of identifying all involutory 611:centrosymmetric matrices over 1: 2115:Fundamental (computer vision) 1258:American Mathematical Monthly 1082:10.1016/S0252-9602(12)60044-7 1049: 954:The centrosymmetric relation 515:matrices are centrosymmetric. 1114:10.1016/0024-3795(73)90049-9 7: 1881:Duplication and elimination 1680:eigenvalues or eigenvectors 937:is skew-centrosymmetric if 360: 10: 2290: 1814:With specific applications 1443:Discrete Fourier Transform 579:is centrosymmetric, since 26: 2224: 2173: 2105:Cabibbo–Kobayashi–Maskawa 2097: 2043: 1979: 1813: 1732:Satisfying conditions on 1731: 1677: 1616: 1340: 1209:10.1137/S0895479802418835 1197:SIAM J. Matrix Anal. Appl 1181:10.1016/j.laa.2003.07.013 1149:10.1137/S0895479801386730 1137:SIAM J. Matrix Anal. Appl 1070:Acta Mathematica Scientia 719:centrosymmetric matrix is 698:, then the matrices that 808:if its entries satisfy 706:must be centrosymmetric. 1463:Generalized permutation 1024:has also been studied. 687:is the exchange matrix. 2237:Mathematics portal 1292:Centrosymmetric matrix 1162:Trench, W. F. (2004). 927: 774: 501: 416: 334: 197: 48:centrosymmetric matrix 24: 1095:Andrew, Alan (1973). 928: 775: 502: 417: 335: 198: 22: 1032:bisymmetric matrices 968:is replaced with an 812: 806:skew-centrosymmetric 729: 428: 370: 230: 85: 2186:Linear independence 1433:Diagonally dominant 1168:Linear Algebra Appl 1101:Linear Algebra Appl 621:associative algebra 344:is centrosymmetric 2191:Matrix exponential 2181:Jordan normal form 2015:Fisher information 1886:Euclidean distance 1800:Totally unimodular 923: 786:Related structures 770: 497: 488: 412: 403: 330: 325: 226:and 0 elsewhere: 205:Alternatively, if 193: 25: 2256: 2255: 2248:Category:Matrices 2120:Fuzzy associative 2010:Doubly stochastic 1718:Positive-definite 1398:Block tridiagonal 1237:. Dover. p.  970:involutory matrix 883: 765: 153: 58:Formal definition 2281: 2243:List of matrices 2235: 2234: 2211:Row echelon form 2155:State transition 2084:Seidel adjacency 1966:Totally positive 1826:Alternating sign 1423:Complex Hadamard 1326: 1319: 1312: 1303: 1302: 1281: 1252: 1236: 1213: 1212: 1192: 1186: 1185: 1183: 1159: 1153: 1152: 1128: 1119: 1118: 1116: 1092: 1086: 1085: 1065: 1023: 1019: 1015: 1009: 999: 989: 985: 974: 967: 963: 950: 946: 936: 932: 930: 929: 924: 884: 881: 878: 877: 831: 830: 803: 799: 779: 777: 776: 771: 766: 761: 760: 759: 744: 743: 733: 718: 705: 693: 686: 682: 668: 651: 643: 639: 632: 614: 610: 592: 578: 572:. Moreover, the 571: 567: 563: 559: 549: 542: 532: 528: 506: 504: 503: 498: 493: 492: 421: 419: 418: 413: 408: 407: 356: 343: 339: 337: 336: 331: 329: 328: 249: 248: 218: 208: 202: 200: 199: 194: 154: 151: 148: 147: 104: 103: 78: 71: 38:, especially in 29:Symmetric matrix 2289: 2288: 2284: 2283: 2282: 2280: 2279: 2278: 2259: 2258: 2257: 2252: 2229: 2220: 2169: 2093: 2039: 1975: 1809: 1727: 1673: 1612: 1413:Centrosymmetric 1336: 1330: 1288: 1270:10.2307/2323222 1264:(10): 711–717. 1249: 1222: 1220:Further reading 1217: 1216: 1193: 1189: 1160: 1156: 1129: 1122: 1093: 1089: 1066: 1057: 1052: 1021: 1017: 1011: 1004: 991: 987: 976: 972: 965: 955: 948: 938: 934: 880: 842: 838: 819: 815: 813: 810: 809: 801: 795: ×  791: 788: 755: 751: 739: 735: 734: 732: 730: 727: 726: 714: ×  710: 703: 691: 684: 670: 656: 649: 641: 637: 628: ×  624: 612: 606: ×  602: 595:identity matrix 580: 576: 569: 565: 561: 551: 547: 538: ×  534: 530: 526: 522: 487: 486: 481: 476: 470: 469: 464: 459: 453: 452: 447: 442: 432: 431: 429: 426: 425: 402: 401: 396: 390: 389: 384: 374: 373: 371: 368: 367: 363: 348: 341: 324: 323: 300: 291: 290: 267: 254: 253: 237: 233: 231: 228: 227: 220:exchange matrix 210: 206: 150: 112: 108: 92: 88: 86: 83: 82: 73: 67: ×  63: 60: 32: 17: 12: 11: 5: 2287: 2277: 2276: 2271: 2269:Linear algebra 2254: 2253: 2251: 2250: 2245: 2240: 2225: 2222: 2221: 2219: 2218: 2213: 2208: 2203: 2201:Perfect matrix 2198: 2193: 2188: 2183: 2177: 2175: 2171: 2170: 2168: 2167: 2162: 2157: 2152: 2147: 2142: 2137: 2132: 2127: 2122: 2117: 2112: 2107: 2101: 2099: 2095: 2094: 2092: 2091: 2086: 2081: 2076: 2071: 2066: 2061: 2056: 2050: 2048: 2041: 2040: 2038: 2037: 2032: 2027: 2022: 2017: 2012: 2007: 2002: 1997: 1992: 1986: 1984: 1977: 1976: 1974: 1973: 1971:Transformation 1968: 1963: 1958: 1953: 1948: 1943: 1938: 1933: 1928: 1923: 1918: 1913: 1908: 1903: 1898: 1893: 1888: 1883: 1878: 1873: 1868: 1863: 1858: 1853: 1848: 1843: 1838: 1833: 1828: 1823: 1817: 1815: 1811: 1810: 1808: 1807: 1802: 1797: 1792: 1787: 1782: 1777: 1772: 1767: 1762: 1757: 1748: 1742: 1740: 1729: 1728: 1726: 1725: 1720: 1715: 1710: 1708:Diagonalizable 1705: 1700: 1695: 1690: 1684: 1682: 1678:Conditions on 1675: 1674: 1672: 1671: 1666: 1661: 1656: 1651: 1646: 1641: 1636: 1631: 1626: 1620: 1618: 1614: 1613: 1611: 1610: 1605: 1600: 1595: 1590: 1585: 1580: 1575: 1570: 1565: 1560: 1558:Skew-symmetric 1555: 1553:Skew-Hermitian 1550: 1545: 1540: 1535: 1530: 1525: 1520: 1515: 1510: 1505: 1500: 1495: 1490: 1485: 1480: 1475: 1470: 1465: 1460: 1455: 1450: 1445: 1440: 1435: 1430: 1425: 1420: 1415: 1410: 1405: 1400: 1395: 1390: 1388:Block-diagonal 1385: 1380: 1375: 1370: 1365: 1363:Anti-symmetric 1360: 1358:Anti-Hermitian 1355: 1350: 1344: 1342: 1338: 1337: 1329: 1328: 1321: 1314: 1306: 1300: 1299: 1287: 1286:External links 1284: 1283: 1282: 1253: 1247: 1221: 1218: 1215: 1214: 1203:(3): 601–605. 1187: 1154: 1143:(3): 885–895. 1120: 1107:(2): 151–162. 1087: 1076:(2): 631–644. 1054: 1053: 1051: 1048: 933:Equivalently, 922: 919: 916: 912: 909: 905: 902: 899: 896: 893: 890: 887: 876: 873: 870: 867: 864: 860: 857: 854: 851: 848: 845: 841: 837: 834: 829: 825: 822: 818: 804:is said to be 787: 784: 783: 782: 781: 780: 769: 764: 758: 754: 750: 747: 742: 738: 721: 720: 707: 688: 634: 574:matrix product 550:, then so are 521: 518: 517: 516: 507: 496: 491: 485: 482: 480: 477: 475: 472: 471: 468: 465: 463: 460: 458: 455: 454: 451: 448: 446: 443: 441: 438: 437: 435: 422: 411: 406: 400: 397: 395: 392: 391: 388: 385: 383: 380: 379: 377: 362: 359: 346:if and only if 340:then a matrix 327: 322: 319: 316: 313: 310: 307: 304: 301: 299: 296: 293: 292: 289: 286: 283: 280: 277: 274: 271: 268: 266: 263: 260: 259: 257: 252: 247: 243: 240: 236: 222:with 1 on the 192: 189: 186: 182: 179: 175: 172: 169: 166: 163: 160: 157: 146: 143: 140: 137: 134: 130: 127: 124: 121: 118: 115: 111: 107: 102: 98: 95: 91: 59: 56: 40:linear algebra 15: 9: 6: 4: 3: 2: 2286: 2275: 2272: 2270: 2267: 2266: 2264: 2249: 2246: 2244: 2241: 2239: 2238: 2233: 2227: 2226: 2223: 2217: 2214: 2212: 2209: 2207: 2206:Pseudoinverse 2204: 2202: 2199: 2197: 2194: 2192: 2189: 2187: 2184: 2182: 2179: 2178: 2176: 2174:Related terms 2172: 2166: 2165:Z (chemistry) 2163: 2161: 2158: 2156: 2153: 2151: 2148: 2146: 2143: 2141: 2138: 2136: 2133: 2131: 2128: 2126: 2123: 2121: 2118: 2116: 2113: 2111: 2108: 2106: 2103: 2102: 2100: 2096: 2090: 2087: 2085: 2082: 2080: 2077: 2075: 2072: 2070: 2067: 2065: 2062: 2060: 2057: 2055: 2052: 2051: 2049: 2047: 2042: 2036: 2033: 2031: 2028: 2026: 2023: 2021: 2018: 2016: 2013: 2011: 2008: 2006: 2003: 2001: 1998: 1996: 1993: 1991: 1988: 1987: 1985: 1983: 1978: 1972: 1969: 1967: 1964: 1962: 1959: 1957: 1954: 1952: 1949: 1947: 1944: 1942: 1939: 1937: 1934: 1932: 1929: 1927: 1924: 1922: 1919: 1917: 1914: 1912: 1909: 1907: 1904: 1902: 1899: 1897: 1894: 1892: 1889: 1887: 1884: 1882: 1879: 1877: 1874: 1872: 1869: 1867: 1864: 1862: 1859: 1857: 1854: 1852: 1849: 1847: 1844: 1842: 1839: 1837: 1834: 1832: 1829: 1827: 1824: 1822: 1819: 1818: 1816: 1812: 1806: 1803: 1801: 1798: 1796: 1793: 1791: 1788: 1786: 1783: 1781: 1778: 1776: 1773: 1771: 1768: 1766: 1763: 1761: 1758: 1756: 1752: 1749: 1747: 1744: 1743: 1741: 1739: 1735: 1730: 1724: 1721: 1719: 1716: 1714: 1711: 1709: 1706: 1704: 1701: 1699: 1696: 1694: 1691: 1689: 1686: 1685: 1683: 1681: 1676: 1670: 1667: 1665: 1662: 1660: 1657: 1655: 1652: 1650: 1647: 1645: 1642: 1640: 1637: 1635: 1632: 1630: 1627: 1625: 1622: 1621: 1619: 1615: 1609: 1606: 1604: 1601: 1599: 1596: 1594: 1591: 1589: 1586: 1584: 1581: 1579: 1576: 1574: 1571: 1569: 1566: 1564: 1561: 1559: 1556: 1554: 1551: 1549: 1546: 1544: 1541: 1539: 1536: 1534: 1531: 1529: 1526: 1524: 1523:Pentadiagonal 1521: 1519: 1516: 1514: 1511: 1509: 1506: 1504: 1501: 1499: 1496: 1494: 1491: 1489: 1486: 1484: 1481: 1479: 1476: 1474: 1471: 1469: 1466: 1464: 1461: 1459: 1456: 1454: 1451: 1449: 1446: 1444: 1441: 1439: 1436: 1434: 1431: 1429: 1426: 1424: 1421: 1419: 1416: 1414: 1411: 1409: 1406: 1404: 1401: 1399: 1396: 1394: 1391: 1389: 1386: 1384: 1381: 1379: 1376: 1374: 1371: 1369: 1366: 1364: 1361: 1359: 1356: 1354: 1353:Anti-diagonal 1351: 1349: 1346: 1345: 1343: 1339: 1334: 1327: 1322: 1320: 1315: 1313: 1308: 1307: 1304: 1297: 1293: 1290: 1289: 1279: 1275: 1271: 1267: 1263: 1259: 1254: 1250: 1248:0-486-60670-8 1244: 1240: 1235: 1234: 1228: 1224: 1223: 1210: 1206: 1202: 1198: 1191: 1182: 1177: 1173: 1169: 1165: 1158: 1150: 1146: 1142: 1138: 1134: 1127: 1125: 1115: 1110: 1106: 1102: 1098: 1091: 1083: 1079: 1075: 1071: 1064: 1062: 1060: 1055: 1047: 1045: 1041: 1037: 1033: 1029: 1025: 1014: 1007: 1003: 998: 994: 983: 979: 971: 962: 958: 952: 945: 941: 920: 914: 910: 907: 903: 900: 894: 891: 888: 885: 882:for all  874: 871: 868: 865: 862: 858: 855: 852: 849: 846: 843: 839: 835: 832: 827: 823: 820: 816: 807: 798: 794: 767: 762: 756: 748: 745: 740: 736: 725: 724: 723: 722: 717: 713: 708: 701: 697: 689: 681: 677: 673: 667: 663: 659: 654: 647: 644:-dimensional 635: 631: 627: 622: 618: 609: 605: 600: 596: 591: 587: 583: 575: 558: 554: 546: 541: 537: 524: 523: 514: 511: 508: 494: 489: 483: 478: 473: 466: 461: 456: 449: 444: 439: 433: 423: 409: 404: 398: 393: 386: 381: 375: 365: 364: 358: 355: 351: 347: 320: 317: 314: 311: 308: 305: 302: 297: 294: 287: 284: 281: 278: 275: 272: 269: 264: 261: 255: 250: 245: 241: 238: 234: 225: 221: 217: 213: 203: 190: 184: 180: 177: 173: 170: 164: 161: 158: 155: 152:for all  144: 141: 138: 135: 132: 128: 125: 122: 119: 116: 113: 109: 105: 100: 96: 93: 89: 80: 76: 70: 66: 55: 53: 49: 45: 44:matrix theory 41: 37: 30: 21: 2228: 2160:Substitution 2046:graph theory 1543:Quaternionic 1533:Persymmetric 1412: 1261: 1257: 1232: 1227:Muir, Thomas 1200: 1196: 1190: 1171: 1167: 1157: 1140: 1136: 1104: 1100: 1090: 1073: 1069: 1040:real numbers 1036:ground field 1034:. When the 1026: 1012: 1005: 996: 992: 981: 977: 960: 956: 953: 943: 939: 805: 796: 792: 789: 715: 711: 679: 675: 671: 665: 661: 657: 653:eigenvectors 629: 625: 607: 603: 593:. Since the 589: 585: 581: 556: 552: 539: 535: 353: 349: 224:antidiagonal 215: 211: 209:denotes the 204: 81: 74: 68: 64: 61: 47: 33: 2135:Hamiltonian 2059:Biadjacency 1995:Correlation 1911:Householder 1861:Commutation 1598:Vandermonde 1593:Tridiagonal 1528:Permutation 1518:Nonnegative 1503:Matrix unit 1383:Bisymmetric 1174:: 207–218. 990:satisfying 696:eigenvalues 648:, then its 36:mathematics 2263:Categories 2035:Transition 2030:Stochastic 2000:Covariance 1982:statistics 1961:Symplectic 1956:Similarity 1785:Unimodular 1780:Orthogonal 1765:Involutory 1760:Invertible 1755:Projection 1751:Idempotent 1693:Convergent 1588:Triangular 1538:Polynomial 1483:Hessenberg 1453:Equivalent 1448:Elementary 1428:Copositive 1418:Conference 1378:Bidiagonal 1050:References 674:= −  646:eigenbasis 617:subalgebra 2216:Wronskian 2140:Irregular 2130:Gell-Mann 2079:Laplacian 2074:Incidence 2054:Adjacency 2025:Precision 1990:Centering 1896:Generator 1866:Confusion 1851:Circulant 1831:Augmented 1790:Unipotent 1770:Nilpotent 1746:Congruent 1723:Stieltjes 1698:Defective 1688:Companion 1659:Redheffer 1578:Symmetric 1573:Sylvester 1548:Signature 1478:Hermitian 1458:Frobenius 1368:Arrowhead 1348:Alternant 1296:MathWorld 1044:Hermitian 1028:Symmetric 908:… 895:∈ 866:− 847:− 836:− 633:matrices. 510:Symmetric 312:≠ 178:… 165:∈ 136:− 117:− 2274:Matrices 2044:Used in 1980:Used in 1941:Rotation 1916:Jacobian 1876:Distance 1856:Cofactor 1841:Carleman 1821:Adjugate 1805:Weighing 1738:inverses 1734:products 1703:Definite 1634:Identity 1624:Exchange 1617:Constant 1583:Toeplitz 1468:Hadamard 1438:Diagonal 1229:(1960). 947:, where 615:forms a 564:for any 513:Toeplitz 361:Examples 2145:Overlap 2110:Density 2069:Edmonds 1946:Seifert 1906:Hessian 1871:Coxeter 1795:Unitary 1713:Hurwitz 1644:Of ones 1629:Hilbert 1563:Skyline 1508:Metzler 1498:Logical 1493:Integer 1403:Boolean 1335:classes 1278:2323222 1038:is the 1013:AK = KA 1002:integer 1000:for an 984:  975:(i.e., 800:matrix 700:commute 678:  664:  623:of all 619:of the 72:matrix 2064:Degree 2005:Design 1936:Random 1926:Payoff 1921:Moment 1846:Cartan 1836:Bézout 1775:Normal 1649:Pascal 1639:Lehmer 1568:Sparse 1488:Hollow 1473:Hankel 1408:Cauchy 1333:Matrix 1276:  1245:  1008:> 1 683:where 52:matrix 2125:Gamma 2089:Tutte 1951:Shear 1664:Shift 1654:Pauli 1603:Walsh 1513:Moore 1393:Block 1274:JSTOR 702:with 545:field 50:is a 1931:Pick 1901:Gram 1669:Zero 1373:Band 1243:ISBN 560:and 533:are 529:and 46:, a 42:and 2020:Hat 1753:or 1736:or 1294:on 1266:doi 1205:doi 1176:doi 1172:377 1145:doi 1109:doi 1078:doi 942:= − 790:An 753:mod 690:If 669:or 636:If 601:of 599:set 590:ABJ 586:AJB 582:JAB 568:in 525:If 62:An 34:In 2265:: 1272:. 1262:92 1260:. 1241:. 1239:19 1201:25 1199:. 1170:. 1166:. 1141:23 1139:. 1135:. 1123:^ 1103:. 1099:. 1074:32 1072:. 1058:^ 995:= 980:= 961:JA 959:= 957:AJ 944:JA 940:AJ 660:= 588:= 584:= 577:AB 562:cA 555:+ 357:. 354:JA 352:= 350:AJ 214:× 77:= 2150:S 1608:Z 1325:e 1318:t 1311:v 1298:. 1280:. 1268:: 1251:. 1211:. 1207:: 1184:. 1178:: 1151:. 1147:: 1117:. 1111:: 1105:7 1084:. 1080:: 1022:A 1018:K 1006:m 997:I 993:K 988:K 982:I 978:K 973:K 966:J 949:J 935:A 921:. 918:} 915:n 911:, 904:, 901:1 898:{ 892:j 889:, 886:i 875:1 872:+ 869:j 863:n 859:, 856:1 853:+ 850:i 844:n 840:A 833:= 828:j 824:, 821:i 817:A 802:A 797:n 793:n 768:. 763:2 757:2 749:m 746:+ 741:2 737:m 716:m 712:m 704:A 692:A 685:J 680:x 676:J 672:x 666:x 662:J 658:x 650:m 642:m 638:A 630:n 626:n 613:F 608:n 604:n 570:F 566:c 557:B 553:A 548:F 540:n 536:n 531:B 527:A 495:. 490:] 484:a 479:b 474:c 467:d 462:e 457:d 450:c 445:b 440:a 434:[ 410:. 405:] 399:a 394:b 387:b 382:a 376:[ 342:A 321:1 318:+ 315:n 309:j 306:+ 303:i 298:, 295:0 288:1 285:+ 282:n 279:= 276:j 273:+ 270:i 265:, 262:1 256:{ 251:= 246:j 242:, 239:i 235:J 216:n 212:n 207:J 191:. 188:} 185:n 181:, 174:, 171:1 168:{ 162:j 159:, 156:i 145:1 142:+ 139:j 133:n 129:, 126:1 123:+ 120:i 114:n 110:A 106:= 101:j 97:, 94:i 90:A 75:A 69:n 65:n 31:.

Index


Symmetric matrix
mathematics
linear algebra
matrix theory
matrix
exchange matrix
antidiagonal
if and only if
Symmetric
Toeplitz
field
matrix product
identity matrix
set
subalgebra
associative algebra
eigenbasis
eigenvectors
eigenvalues
commute
involutory matrix
integer
Symmetric
bisymmetric matrices
ground field
real numbers
Hermitian

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