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Local diffeomorphism

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is a stronger condition than "to be locally diffeomophic." Indeed, although locally-defined diffeomorphisms preserve differentiable structure locally, one must be able to "patch up" these (local) diffeomorphisms to ensure that the domain is the entire smooth manifold.
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If a local diffeomorphism between two manifolds exists then their dimensions must be equal. Every local diffeomorphism is also a
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guarantees that any continuous injective function between manifolds of equal dimensions is necessarily an open map.
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is a linear isomorphism if and only if it is injective, or equivalently, if and only if it is surjective.
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All manifolds of the same dimension are "locally diffeomorphic," in the following sense: if
944: 875: 849: 702: 348: 134: 2426: 2364: 2212: 1906: 1878: 1853: 1763: 1707: 1669: 1654:, Graduate Texts in Mathematics, vol. 218 (Second ed.), New York, NY.: Springer, 1642: 1548: 1536: 1530: 1234:, let alone extend to a local diffeomorphism. Thus the existence of a local diffeomorphism 979: 974:
Here is an alternative argument for the case of an immersion: every smooth immersion is a
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into a differentiable manifold, but both structures are not locally diffeomorphic (see
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is compact, and the 2-sphere is compact whereas Euclidean 2-space is not.
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is a local diffeomorphism such that every point in the target has a
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As another example, there can be no local diffeomorphism from the
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have the same dimension, which may be less than the dimension of
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A map is a local diffeomorphism if and only if it is a smooth
831:{\displaystyle \operatorname {dim} X=\operatorname {dim} Y} 838:) is a local diffeomorphism if and only if it is a smooth 1545: – Mathematical function revertible near each point 1551: – features of space-time representing symmetries 1412: 1340: 1309: 1280: 1240: 1220: 1200: 1168: 1148: 1128: 1108: 1088: 1062: 1036: 1016: 996: 947: 908: 878: 852: 806: 774: 751: 731: 705: 630: 595: 552: 523: 503: 450: 417: 397: 377: 351: 319: 258: 238: 209: 186: 166: 137: 101: 74: 54: 1553:
Pages displaying wikidata descriptions as a fallback
1421: 1355: 1324: 1295: 1258: 1226: 1214:need not extend to a smooth map defined on all of 1206: 1186: 1154: 1134: 1114: 1094: 1074: 1048: 1022: 1002: 963: 933: 894: 864: 830: 792: 757: 737: 717: 687: 613: 558: 538: 509: 489: 432: 403: 383: 363: 337: 295: 244: 224: 192: 172: 149: 119: 80: 60: 2592: 1521: – Isomorphism of differentiable manifolds 310:A local diffeomorphism is a special case of an 1729: 1467: 621:is a local diffeomorphism if and only if the 263: 1736: 1722: 1270:For example, one can impose two different 800:between two manifolds of equal dimension ( 688:{\displaystyle Df_{x}:T_{x}X\to T_{f(x)}Y} 1687: 1343: 1312: 1283: 1743: 1402:. A local diffeomorphism has constant 1082:, then there exist open neighbourhoods 2593: 1614: 1717: 1675: 296:{\displaystyle f\vert _{U}:U\to f(U)} 1477: 569: 43: 1649: 13: 1623:, vol. 93, Providence, R.I.: 14: 2632: 1652:Introduction to smooth manifolds 1586:Introduction to smooth manifolds 1573:Introduction to smooth manifolds 1481: 1356:{\displaystyle \mathbb {R} ^{4}} 1325:{\displaystyle \mathbb {R} ^{4}} 1296:{\displaystyle \mathbb {R} ^{4}} 578:(smooth local embedding) and an 490:{\displaystyle f|_{U}:U\to f(U)} 1621:Graduate Studies in Mathematics 1617:Topics in differential geometry 1539: – Class of diffeomorphism 2601:Theory of continuous functions 1776:Differentiable/Smooth manifold 1591: 1578: 1565: 1250: 1178: 941:have the same dimension, thus 923: 917: 784: 677: 671: 660: 605: 533: 527: 484: 478: 472: 456: 427: 421: 329: 290: 284: 278: 219: 213: 111: 1: 1625:American Mathematical Society 1608: 1386: 1030:have the same dimension, and 985: 1379:, the continuous image of a 7: 2482:Classification of manifolds 1512: 1431: 846:. This is because, for any 371:, there exists an open set 10: 2637: 1471: 1468:Local flow diffeomorphisms 976:locally injective function 589:implies that a smooth map 497:is a diffeomorphism. Here 2558:over commutative algebras 2515: 2474: 2407: 2304: 2200: 2147: 2138: 1974: 1897: 1836: 1756: 1689:10.1007/978-3-031-41026-0 1679:Linear algebra done right 1615:Michor, Peter W. (2008), 1599:Linear algebra done right 1272:differentiable structures 934:{\displaystyle T_{f(x)}Y} 765:have the same dimension. 345:. In this case, for each 36:that preserves the local 2274:Riemann curvature tensor 1558: 1259:{\displaystyle f:X\to Y} 1187:{\displaystyle f:U\to V} 793:{\displaystyle f:X\to Y} 614:{\displaystyle f:X\to Y} 587:inverse function theorem 338:{\displaystyle f:X\to Y} 120:{\displaystyle f:X\to Y} 90:differentiable manifolds 38:differentiable structure 1676:Axler, Sheldon (2024), 2611:Functions and mappings 2066:Manifold with boundary 1781:Differential structure 1490:This section is empty. 1423: 1357: 1326: 1297: 1260: 1228: 1208: 1188: 1156: 1136: 1116: 1096: 1076: 1075:{\displaystyle y\in Y} 1050: 1049:{\displaystyle x\in X} 1024: 1004: 965: 964:{\displaystyle Df_{x}} 935: 896: 895:{\displaystyle T_{x}X} 866: 865:{\displaystyle x\in X} 832: 794: 768:It follows that a map 759: 739: 719: 718:{\displaystyle x\in X} 689: 615: 560: 540: 511: 491: 434: 405: 385: 365: 364:{\displaystyle x\in X} 339: 297: 246: 226: 194: 174: 151: 150:{\displaystyle x\in X} 121: 82: 62: 1650:Lee, John M. (2013), 1445:local diffeomorphism. 1424: 1358: 1327: 1298: 1261: 1229: 1209: 1189: 1162:and a diffeomorphism 1157: 1137: 1117: 1097: 1077: 1051: 1025: 1005: 966: 936: 897: 867: 833: 795: 760: 740: 720: 690: 616: 561: 541: 512: 492: 435: 406: 386: 366: 340: 298: 247: 227: 195: 175: 152: 122: 83: 63: 22:differential topology 2213:Covariant derivative 1764:Topological manifold 1549:Spacetime symmetries 1537:Large diffeomorphism 1531:Invariance of domain 1410: 1338: 1307: 1278: 1238: 1218: 1198: 1194:. However, this map 1166: 1146: 1126: 1106: 1086: 1060: 1034: 1014: 994: 980:invariance of domain 945: 906: 876: 850: 804: 772: 749: 729: 725:. This implies that 703: 628: 593: 550: 539:{\displaystyle f(U)} 521: 501: 448: 442:embedded submanifold 433:{\displaystyle f(U)} 415: 411:such that the image 395: 375: 349: 317: 256: 236: 225:{\displaystyle f(U)} 207: 184: 164: 135: 129:local diffeomorphism 99: 72: 52: 26:local diffeomorphism 20:, more specifically 2247:Exterior derivative 1849:Atiyah–Singer index 1798:Riemannian manifold 1543:Local homeomorphism 1393:local homeomorphism 131:if, for each point 2553:Secondary calculus 2507:Singularity theory 2462:Parallel transport 2230:De Rham cohomology 1869:Generalized Stokes 1575:, Proposition 5.22 1474:Flow (mathematics) 1422:{\displaystyle n.} 1419: 1353: 1322: 1293: 1256: 1224: 1204: 1184: 1152: 1132: 1112: 1092: 1072: 1046: 1020: 1000: 961: 931: 892: 862: 828: 790: 755: 735: 715: 697:linear isomorphism 685: 611: 556: 536: 507: 487: 430: 401: 381: 361: 335: 293: 242: 222: 190: 170: 157:, there exists an 147: 117: 78: 58: 2621:Inverse functions 2588: 2587: 2470: 2469: 2235:Differential form 1889:Whitney embedding 1823:Differential form 1699:978-3-031-41026-0 1661:978-1-4419-9981-8 1634:978-0-8218-2003-2 1588:, Proposition 4.8 1510: 1509: 1397:locally injective 1373:Euclidean 2-space 1227:{\displaystyle X} 1207:{\displaystyle f} 1155:{\displaystyle y} 1135:{\displaystyle V} 1115:{\displaystyle x} 1095:{\displaystyle U} 1023:{\displaystyle Y} 1003:{\displaystyle X} 758:{\displaystyle Y} 738:{\displaystyle X} 570:Characterizations 559:{\displaystyle Y} 510:{\displaystyle X} 404:{\displaystyle x} 384:{\displaystyle U} 245:{\displaystyle Y} 193:{\displaystyle x} 173:{\displaystyle U} 81:{\displaystyle Y} 61:{\displaystyle X} 44:Formal definition 28:is intuitively a 2628: 2580:Stratified space 2538:Fréchet manifold 2252:Interior product 2145: 2144: 1842: 1738: 1731: 1724: 1715: 1714: 1710: 1691: 1672: 1645: 1602: 1595: 1589: 1582: 1576: 1569: 1554: 1505: 1502: 1492:You can help by 1485: 1478: 1428: 1426: 1425: 1420: 1395:and therefore a 1362: 1360: 1359: 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126: 124: 123: 118: 87: 85: 84: 79: 67: 65: 64: 59: 34:smooth manifolds 2636: 2635: 2631: 2630: 2629: 2627: 2626: 2625: 2606:Diffeomorphisms 2591: 2590: 2589: 2584: 2523:Banach manifold 2516:Generalizations 2511: 2466: 2403: 2300: 2262:Ricci curvature 2218:Cotangent space 2196: 2134: 1976: 1970: 1929:Exponential map 1893: 1838: 1832: 1752: 1742: 1700: 1662: 1635: 1611: 1606: 1605: 1596: 1592: 1583: 1579: 1570: 1566: 1561: 1552: 1515: 1506: 1500: 1497: 1476: 1470: 1434: 1411: 1408: 1407: 1389: 1347: 1342: 1341: 1339: 1336: 1335: 1316: 1311: 1310: 1308: 1305: 1304: 1303:that each make 1287: 1282: 1281: 1279: 1276: 1275: 1239: 1236: 1235: 1219: 1216: 1215: 1199: 1196: 1195: 1167: 1164: 1163: 1147: 1144: 1143: 1127: 1124: 1123: 1107: 1104: 1103: 1087: 1084: 1083: 1061: 1058: 1057: 1035: 1032: 1031: 1015: 1012: 1011: 995: 992: 991: 988: 955: 951: 946: 943: 942: 913: 909: 907: 904: 903: 883: 879: 877: 874: 873: 851: 848: 847: 805: 802: 801: 773: 770: 769: 750: 747: 746: 730: 727: 726: 704: 701: 700: 699:for all points 667: 663: 651: 647: 638: 634: 629: 626: 625: 594: 591: 590: 572: 551: 548: 547: 522: 519: 518: 502: 499: 498: 460: 455: 454: 449: 446: 445: 416: 413: 412: 396: 393: 392: 376: 373: 372: 350: 347: 346: 318: 315: 314: 266: 262: 257: 254: 253: 237: 234: 233: 208: 205: 204: 185: 182: 181: 165: 162: 161: 136: 133: 132: 100: 97: 96: 73: 70: 69: 53: 50: 49: 46: 12: 11: 5: 2634: 2624: 2623: 2618: 2616:Homeomorphisms 2613: 2608: 2603: 2586: 2585: 2583: 2582: 2577: 2572: 2567: 2562: 2561: 2560: 2550: 2545: 2540: 2535: 2530: 2525: 2519: 2517: 2513: 2512: 2510: 2509: 2504: 2499: 2494: 2489: 2484: 2478: 2476: 2472: 2471: 2468: 2467: 2465: 2464: 2459: 2454: 2449: 2444: 2439: 2434: 2429: 2424: 2419: 2413: 2411: 2405: 2404: 2402: 2401: 2396: 2391: 2386: 2381: 2376: 2371: 2361: 2356: 2351: 2341: 2336: 2331: 2326: 2321: 2316: 2310: 2308: 2302: 2301: 2299: 2298: 2293: 2288: 2287: 2286: 2276: 2271: 2270: 2269: 2259: 2254: 2249: 2244: 2243: 2242: 2232: 2227: 2226: 2225: 2215: 2210: 2204: 2202: 2198: 2197: 2195: 2194: 2189: 2184: 2179: 2178: 2177: 2167: 2162: 2157: 2151: 2149: 2142: 2136: 2135: 2133: 2132: 2127: 2117: 2112: 2098: 2093: 2088: 2083: 2078: 2076:Parallelizable 2073: 2068: 2063: 2062: 2061: 2051: 2046: 2041: 2036: 2031: 2026: 2021: 2016: 2011: 2006: 1996: 1986: 1980: 1978: 1972: 1971: 1969: 1968: 1963: 1958: 1956:Lie derivative 1953: 1951:Integral curve 1948: 1943: 1938: 1937: 1936: 1926: 1921: 1920: 1919: 1912:Diffeomorphism 1909: 1903: 1901: 1895: 1894: 1892: 1891: 1886: 1881: 1876: 1871: 1866: 1861: 1856: 1851: 1845: 1843: 1834: 1833: 1831: 1830: 1825: 1820: 1815: 1810: 1805: 1800: 1795: 1790: 1789: 1788: 1783: 1773: 1772: 1771: 1760: 1758: 1757:Basic concepts 1754: 1753: 1741: 1740: 1733: 1726: 1718: 1712: 1711: 1698: 1673: 1660: 1647: 1633: 1610: 1607: 1604: 1603: 1601:, Theorem 3.21 1590: 1577: 1563: 1562: 1560: 1557: 1556: 1555: 1546: 1540: 1534: 1528: 1522: 1519:Diffeomorphism 1514: 1511: 1508: 1507: 1488: 1486: 1469: 1466: 1465: 1464: 1462: 1461:evenly covered 1446: 1439:diffeomorphism 1433: 1430: 1418: 1415: 1388: 1385: 1350: 1345: 1319: 1314: 1290: 1285: 1255: 1252: 1249: 1246: 1243: 1223: 1203: 1183: 1180: 1177: 1174: 1171: 1151: 1131: 1111: 1091: 1071: 1068: 1065: 1045: 1042: 1039: 1019: 999: 987: 984: 958: 954: 950: 930: 925: 922: 919: 916: 912: 891: 886: 882: 861: 858: 855: 827: 824: 821: 818: 815: 812: 809: 789: 786: 783: 780: 777: 754: 734: 714: 711: 708: 684: 679: 676: 673: 670: 666: 662: 659: 654: 650: 646: 641: 637: 633: 610: 607: 604: 601: 598: 571: 568: 555: 535: 532: 529: 526: 506: 486: 483: 480: 477: 474: 471: 468: 463: 458: 453: 429: 426: 423: 420: 400: 380: 360: 357: 354: 334: 331: 328: 325: 322: 305:diffeomorphism 292: 289: 286: 283: 280: 277: 274: 269: 265: 261: 241: 221: 218: 215: 212: 200:such that the 189: 169: 146: 143: 140: 116: 113: 110: 107: 104: 77: 57: 45: 42: 9: 6: 4: 3: 2: 2633: 2622: 2619: 2617: 2614: 2612: 2609: 2607: 2604: 2602: 2599: 2598: 2596: 2581: 2578: 2576: 2575:Supermanifold 2573: 2571: 2568: 2566: 2563: 2559: 2556: 2555: 2554: 2551: 2549: 2546: 2544: 2541: 2539: 2536: 2534: 2531: 2529: 2526: 2524: 2521: 2520: 2518: 2514: 2508: 2505: 2503: 2500: 2498: 2495: 2493: 2490: 2488: 2485: 2483: 2480: 2479: 2477: 2473: 2463: 2460: 2458: 2455: 2453: 2450: 2448: 2445: 2443: 2440: 2438: 2435: 2433: 2430: 2428: 2425: 2423: 2420: 2418: 2415: 2414: 2412: 2410: 2406: 2400: 2397: 2395: 2392: 2390: 2387: 2385: 2382: 2380: 2377: 2375: 2372: 2370: 2366: 2362: 2360: 2357: 2355: 2352: 2350: 2346: 2342: 2340: 2337: 2335: 2332: 2330: 2327: 2325: 2322: 2320: 2317: 2315: 2312: 2311: 2309: 2307: 2303: 2297: 2296:Wedge product 2294: 2292: 2289: 2285: 2282: 2281: 2280: 2277: 2275: 2272: 2268: 2265: 2264: 2263: 2260: 2258: 2255: 2253: 2250: 2248: 2245: 2241: 2240:Vector-valued 2238: 2237: 2236: 2233: 2231: 2228: 2224: 2221: 2220: 2219: 2216: 2214: 2211: 2209: 2206: 2205: 2203: 2199: 2193: 2190: 2188: 2185: 2183: 2180: 2176: 2173: 2172: 2171: 2170:Tangent space 2168: 2166: 2163: 2161: 2158: 2156: 2153: 2152: 2150: 2146: 2143: 2141: 2137: 2131: 2128: 2126: 2122: 2118: 2116: 2113: 2111: 2107: 2103: 2099: 2097: 2094: 2092: 2089: 2087: 2084: 2082: 2079: 2077: 2074: 2072: 2069: 2067: 2064: 2060: 2057: 2056: 2055: 2052: 2050: 2047: 2045: 2042: 2040: 2037: 2035: 2032: 2030: 2027: 2025: 2022: 2020: 2017: 2015: 2012: 2010: 2007: 2005: 2001: 1997: 1995: 1991: 1987: 1985: 1982: 1981: 1979: 1973: 1967: 1964: 1962: 1959: 1957: 1954: 1952: 1949: 1947: 1944: 1942: 1939: 1935: 1934:in Lie theory 1932: 1931: 1930: 1927: 1925: 1922: 1918: 1915: 1914: 1913: 1910: 1908: 1905: 1904: 1902: 1900: 1896: 1890: 1887: 1885: 1882: 1880: 1877: 1875: 1872: 1870: 1867: 1865: 1862: 1860: 1857: 1855: 1852: 1850: 1847: 1846: 1844: 1841: 1837:Main results 1835: 1829: 1826: 1824: 1821: 1819: 1818:Tangent space 1816: 1814: 1811: 1809: 1806: 1804: 1801: 1799: 1796: 1794: 1791: 1787: 1784: 1782: 1779: 1778: 1777: 1774: 1770: 1767: 1766: 1765: 1762: 1761: 1759: 1755: 1750: 1746: 1739: 1734: 1732: 1727: 1725: 1720: 1719: 1716: 1709: 1705: 1701: 1695: 1690: 1685: 1681: 1680: 1674: 1671: 1667: 1663: 1657: 1653: 1648: 1644: 1640: 1636: 1630: 1626: 1622: 1618: 1613: 1612: 1600: 1594: 1587: 1581: 1574: 1568: 1564: 1550: 1547: 1544: 1541: 1538: 1535: 1532: 1529: 1526: 1525:Homeomorphism 1523: 1520: 1517: 1516: 1504: 1495: 1491: 1487: 1484: 1480: 1479: 1475: 1460: 1458: 1454: 1451: 1447: 1444: 1440: 1436: 1435: 1429: 1416: 1413: 1405: 1401: 1398: 1394: 1384: 1382: 1381:compact space 1378: 1374: 1370: 1365: 1363: 1348: 1317: 1288: 1273: 1268: 1253: 1247: 1244: 1241: 1221: 1201: 1181: 1175: 1172: 1169: 1149: 1129: 1109: 1089: 1069: 1066: 1063: 1043: 1040: 1037: 1017: 997: 983: 981: 977: 972: 956: 952: 948: 928: 920: 914: 910: 889: 884: 880: 859: 856: 853: 845: 841: 825: 822: 819: 816: 813: 810: 807: 787: 781: 778: 775: 766: 752: 732: 712: 709: 706: 698: 682: 674: 668: 664: 657: 652: 648: 644: 639: 635: 631: 624: 608: 602: 599: 596: 588: 583: 581: 577: 567: 553: 530: 524: 504: 481: 475: 469: 466: 461: 451: 443: 424: 418: 398: 378: 358: 355: 352: 332: 326: 323: 320: 313: 308: 306: 287: 281: 275: 272: 267: 259: 239: 216: 210: 203: 187: 167: 160: 144: 141: 138: 130: 114: 108: 105: 102: 95: 91: 75: 55: 41: 39: 35: 31: 27: 23: 19: 2502:Moving frame 2497:Morse theory 2487:Gauge theory 2279:Tensor field 2208:Closed/Exact 2187:Vector field 2155:Distribution 2096:Hypercomplex 2091:Quaternionic 1916: 1828:Vector field 1786:Smooth atlas 1678: 1651: 1616: 1598: 1593: 1585: 1580: 1572: 1567: 1498: 1494:adding to it 1489: 1457:neighborhood 1453:covering map 1390: 1366: 1269: 989: 973: 767: 584: 573: 309: 128: 47: 25: 15: 2447:Levi-Civita 2437:Generalized 2409:Connections 2359:Lie algebra 2291:Volume form 2192:Vector flow 2165:Pushforward 2160:Lie bracket 2059:Lie algebra 2024:G-structure 1813:Pushforward 1793:Submanifold 1463:by the map. 391:containing 232:is open in 180:containing 18:mathematics 2595:Categories 2570:Stratifold 2528:Diffeology 2324:Associated 2125:Symplectic 2110:Riemannian 2039:Hyperbolic 1966:Submersion 1874:Hopf–Rinow 1808:Submersion 1803:Smooth map 1609:References 1472:See also: 1387:Properties 1377:continuous 986:Discussion 844:submersion 623:derivative 2452:Principal 2427:Ehresmann 2384:Subbundle 2374:Principal 2349:Fibration 2329:Cotangent 2201:Covectors 2054:Lie group 2034:Hermitian 1977:manifolds 1946:Immersion 1941:Foliation 1879:Noether's 1864:Frobenius 1859:De Rham's 1854:Darboux's 1745:Manifolds 1501:July 2010 1443:bijective 1251:→ 1179:→ 1067:∈ 1041:∈ 857:∈ 840:immersion 823:⁡ 811:⁡ 785:→ 710:∈ 661:→ 606:→ 576:immersion 473:→ 356:∈ 330:→ 312:immersion 279:→ 142:∈ 112:→ 2548:Orbifold 2543:K-theory 2533:Diffiety 2257:Pullback 2071:Oriented 2049:Kenmotsu 2029:Hadamard 1975:Types of 1924:Geodesic 1749:Glossary 1513:See also 1459:that is 1432:Examples 1400:open map 1369:2-sphere 978:, while 580:open map 159:open set 94:function 32:between 2492:History 2475:Related 2389:Tangent 2367:)  2347:)  2314:Adjoint 2306:Bundles 2284:density 2182:Torsion 2148:Vectors 2140:Tensors 2123:)  2108:)  2104:,  2102:Pseudo− 2081:Poisson 2014:Finsler 2009:Fibered 2004:Contact 2002:)  1994:Complex 1992:)  1961:Section 1708:4696768 1670:2954043 1643:2428390 1597:Axler, 1334:Exotic 872:, both 2457:Vector 2442:Koszul 2422:Cartan 2417:Affine 2399:Vector 2394:Tensor 2379:Spinor 2369:Normal 2365:Stable 2319:Affine 2223:bundle 2175:bundle 2121:Almost 2044:Kähler 2000:Almost 1990:Almost 1984:Closed 1884:Sard's 1840:(list) 1706:  1696:  1668:  1658:  1641:  1631:  1450:smooth 444:, and 440:is an 2565:Sheaf 2339:Fiber 2115:Rizza 2086:Prime 1917:Local 1907:Curve 1769:Atlas 1584:Lee, 1571:Lee, 1559:Notes 1441:is a 695:is a 303:is a 202:image 127:is a 2432:Form 2334:Dual 2267:flow 2130:Tame 2106:Sub− 2019:Flat 1899:Maps 1694:ISBN 1656:ISBN 1629:ISBN 1404:rank 1122:and 1056:and 1010:and 902:and 745:and 585:The 517:and 252:and 92:. A 68:and 48:Let 24:, a 2354:Jet 1684:doi 1496:. 1406:of 1371:to 1364:). 1274:on 1142:of 1102:of 820:dim 808:dim 582:. 307:. 88:be 30:map 16:In 2597:: 2345:Co 1704:MR 1702:, 1692:, 1666:MR 1664:, 1639:MR 1637:, 1627:, 1619:, 1448:A 1437:A 566:. 2363:( 2343:( 2119:( 2100:( 1998:( 1988:( 1751:) 1747:( 1737:e 1730:t 1723:v 1686:: 1646:. 1503:) 1499:( 1417:. 1414:n 1349:4 1344:R 1318:4 1313:R 1289:4 1284:R 1254:Y 1248:X 1245:: 1242:f 1222:X 1202:f 1182:V 1176:U 1173:: 1170:f 1150:y 1130:V 1110:x 1090:U 1070:Y 1064:y 1044:X 1038:x 1018:Y 998:X 957:x 953:f 949:D 929:Y 924:) 921:x 918:( 915:f 911:T 890:X 885:x 881:T 860:X 854:x 826:Y 817:= 814:X 788:Y 782:X 779:: 776:f 753:Y 733:X 713:X 707:x 683:Y 678:) 675:x 672:( 669:f 665:T 658:X 653:x 649:T 645:: 640:x 636:f 632:D 609:Y 603:X 600:: 597:f 554:Y 534:) 531:U 528:( 525:f 505:X 485:) 482:U 479:( 476:f 470:U 467:: 462:U 457:| 452:f 428:) 425:U 422:( 419:f 399:x 379:U 359:X 353:x 333:Y 327:X 324:: 321:f 291:) 288:U 285:( 282:f 276:U 273:: 268:U 264:| 260:f 240:Y 220:) 217:U 214:( 211:f 188:x 168:U 145:X 139:x 115:Y 109:X 106:: 103:f 76:Y 56:X

Index

mathematics
differential topology
map
smooth manifolds
differentiable structure
differentiable manifolds
function
open set
image
diffeomorphism
immersion
embedded submanifold
immersion
open map
inverse function theorem
derivative
linear isomorphism
immersion
submersion
locally injective function
invariance of domain
differentiable structures
Exotic R 4 {\displaystyle \mathbb {R} ^{4}}
2-sphere
Euclidean 2-space
continuous
compact space
local homeomorphism
locally injective
open map

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