Knowledge

Lebesgue–Stieltjes integration

Source 📝

1553: 2721: 1323: 53:, preserving the many advantages of the former in a more general measure-theoretic framework. The Lebesgue–Stieltjes integral is the ordinary Lebesgue integral with respect to a measure known as the Lebesgue–Stieltjes measure, which may be associated to any function of 2291: 579: 1181: 1743: 816: 3073: 1625: 1880: 1548:{\displaystyle {\begin{aligned}{\overline {I}}(h)&=\sup \left\{I(f)\ :\ f\in C,0\leq f\leq h\right\}\\{\overline {\overline {I}}}(h)&=\inf \left\{I(f)\ :\ f\in C,h\leq f\right\}.\end{aligned}}} 2486: 2378: 1328: 288: 226: 2090: 1293: 2950: 2129: 664: 173: 902: 2419: 461: 1017: 3621: 1912: 1649: 1926:. This notion is quite useful for various applications: for example, in muddy terrain the speed in which a person can move may depend on how deep the mud is. If 3516: 3421: 418: 3179: 700: 3499: 3401: 2986: 3251: 1564: 3494: 3416: 3223: 3110: 3396: 2973: 2716:{\displaystyle U(t)V(t)=U(0)V(0)+\int _{(0,t]}U(s-)\,dV(s)+\int _{(0,t]}V(s-)\,dU(s)+\sum _{u\in (0,t]}\Delta U_{u}\Delta V_{u},} 1813: 3411: 3346: 3306: 3147: 3079: 2886: 46: 3406: 3585: 2307: 3570: 3369: 3539: 3506: 243: 181: 2018: 3374: 1223: 2296:
Here the relevant Lebesgue–Stieltjes measures are associated with the right-continuous versions of the functions
2286:{\displaystyle \int _{a}^{b}U\,dV+\int _{a}^{b}V\,dU=U(b+)V(b+)-U(a-)V(a-),\qquad -\infty <a<b<\infty .} 3384: 1307: 73: 2895: 609: 118: 3244: 1768:
Integrators of bounded variation are handled as above by decomposing into positive and negative variations.
834: 574:{\displaystyle \mu _{g}(E)=\inf \left\{\sum _{i}\mu _{g}(I_{i})\ :\ E\subseteq \bigcup _{i}I_{i}\right\}} 3544: 3446: 3426: 2790: 97: 58: 34: 2383: 3391: 3281: 2120: 452: 50: 3526: 3441: 3436: 3326: 2878: 2465: 1176:{\displaystyle \int _{a}^{b}f(x)\,dg(x)=\int _{a}^{b}f(x)\,dg_{1}(x)-\int _{a}^{b}f(x)\,dg_{2}(x),} 311: 233: 69: 2461:
are of finite variation on this unbounded interval. Complex-valued functions may be used as well.
3549: 3486: 3379: 3351: 3316: 3237: 3127: 2965: 1758: 1317:
on . This functional can then be extended to the class of all non-negative functions by setting
93: 89: 3598: 3575: 3511: 3481: 3473: 3451: 3431: 3321: 3219: 3200: 3175: 2850: 2754: 1888: 1788: 1738:{\displaystyle \mu _{g}(A):={\overline {I}}(\chi _{A})={\overline {\overline {I}}}(\chi _{A})} 670: 307: 291: 54: 17: 3593: 3456: 3341: 3301: 3296: 3291: 3286: 3276: 3119: 2834: 1199: 237: 101: 3580: 3463: 3336: 3171: 1955: 938: 3534: 3205: 2885:
is a non-decreasing real function, the Lebesgue–Stieltjes integral is equivalent to the
3211: 3159: 31: 3615: 3565: 1963: 1314: 448: 229: 2476:
of finite variation, which are both right-continuous and have left-limits (they are
3311: 3188: 2757:, and is of use in the general theory of stochastic integration. The final term is 85: 3164: 2477: 1630:
and either side of the identity then defines the Lebesgue–Stieltjes integral of
38: 1186:
where the latter two integrals are well-defined by the preceding construction.
61:, and conversely every regular Borel measure on the real line is of this kind. 592:
by countably many semiopen intervals. This measure is sometimes called the
3108:
Hewitt, Edwin (May 1960). "Integration by Parts for Stieltjes Integrals".
3260: 65: 3131: 811:{\displaystyle \int _{a}^{b}f(x)\,dg(x):=-\int _{a}^{b}f(x)\,d(-g)(x),} 585: 88:, to whom much of the theory is due. They find common application in 2789:. (The earlier result can then be seen as a result pertaining to the 3123: 3068:{\displaystyle \int _{-\infty }^{\infty }f(x)\,dv(x)=\mathrm {E} .} 2464:
An alternative result, of significant importance in the theory of
1620:{\displaystyle {\overline {I}}(h)={\overline {\overline {I}}}(h),} 1007:
is bounded, the Lebesgue–Stieltjes integral of f with respect to
821:
the latter integral being defined by the preceding construction.
3233: 1206:
be a non-decreasing right-continuous function on , and define
2103:
of finite variation, if at each point either at least one of
3229: 1875:{\displaystyle \int _{a}^{b}\rho (\gamma (t))\,d\ell (t),} 2955:
for the Lebesgue–Stieltjes integral, letting the measure
1807:
with respect to the Euclidean metric weighted by ρ to be
1202:
that extends the usual Riemann–Stieltjes integral. Let
326:
is monotone non-decreasing and right-continuous. Define
57:
on the real line. The Lebesgue–Stieltjes measure is a
2310: 1803:
is Borel measurable. Then we may define the length of
1198:) is to define the Lebesgue–Stieltjes integral as the 828:
is of bounded variation, then it is possible to write
3216:
Integral, Measure, and Derivative: A Unified Approach
2989: 2898: 2489: 2386: 2132: 2021: 1891: 1816: 1652: 1567: 1326: 1226: 1020: 837: 703: 612: 464: 246: 184: 121: 2865:
Riemann–Stieltjes integration and probability theory
1938:
denotes the inverse of the walking speed at or near
3558: 3525: 3472: 3360: 3267: 3218:, Richard A. Silverman, trans. Dover Publications. 2373:{\textstyle {\tilde {U}}(x)=\lim _{t\to x^{+}}U(t)} 2123:formula for the Lebesgue–Stieltjes integral holds: 3163: 3067: 2944: 2715: 2413: 2372: 2285: 2084: 1906: 1874: 1737: 1619: 1547: 1287: 1175: 896: 810: 658: 573: 282: 220: 167: 2964:remain implicit. This is particularly common in 2336: 1962:-length of curves and is useful in the study of 1468: 1357: 487: 2781:which arises from the quadratic covariation of 1195: 283:{\displaystyle g:\left\rightarrow \mathbb {R} } 221:{\displaystyle f:\left\rightarrow \mathbb {R} } 2085:{\displaystyle f(a)={\frac {f(a-)+f(a+)}{2}}.} 3245: 3082:for more detail on dealing with such cases.) 1288:{\displaystyle I(f)=\int _{a}^{b}f(x)\,dg(x)} 8: 2881:real-valued function of a real variable and 2753:. This result can be seen as a precursor to 2433:may be replaced with an unbounded interval 368:(Alternatively, the construction works for 3252: 3238: 3230: 3039: 3020: 3002: 2994: 2988: 2926: 2908: 2903: 2897: 2837:, and the Lebesgue–Stieltjes integral of 2704: 2691: 2660: 2637: 2604: 2581: 2548: 2488: 2388: 2387: 2385: 2350: 2339: 2312: 2311: 2309: 2179: 2170: 2165: 2151: 2142: 2137: 2131: 2037: 2020: 1890: 1853: 1826: 1821: 1815: 1726: 1704: 1692: 1675: 1657: 1651: 1590: 1568: 1566: 1437: 1331: 1327: 1325: 1269: 1251: 1246: 1225: 1155: 1147: 1129: 1124: 1102: 1094: 1076: 1071: 1048: 1030: 1025: 1019: 879: 857: 836: 780: 762: 757: 731: 713: 708: 702: 640: 622: 617: 611: 560: 550: 522: 509: 499: 469: 463: 276: 275: 245: 214: 213: 183: 149: 131: 126: 120: 3517:Common integrals in quantum field theory 2945:{\displaystyle \int _{a}^{b}f(x)\,dv(x)} 1558:For Borel measurable functions, one has 659:{\displaystyle \int _{a}^{b}f(x)\,dg(x)} 168:{\displaystyle \int _{a}^{b}f(x)\,dg(x)} 3622:Definitions of mathematical integration 3427:Differentiation under the integral sign 3091: 2468:is the following. Given two functions 1950:is the time it would take to traverse 897:{\displaystyle g(x)=g_{1}(x)-g_{2}(x)} 1217:to be the Riemann–Stieltjes integral 7: 1914:is the length of the restriction of 3148:Henstock-Kurzweil-Stiltjes Integral 1982:is said to be "regular" at a point 3040: 3003: 2998: 2697: 2684: 2277: 2259: 1986:if the right and left hand limits 1918:to . This is sometimes called the 421:, there is a unique Borel measure 294:in and right-continuous, or when 25: 3111:The American Mathematical Monthly 2976:of a real-valued random variable 2008:exist, and the function takes at 2974:cumulative distribution function 2414:{\displaystyle {\tilde {V}}(x).} 603:The Lebesgue–Stieltjes integral 419:Carathéodory's extension theorem 112:The Lebesgue–Stieltjes integral 2889:, in which case we often write 2255: 694:is non-increasing, then define 3059: 3056: 3050: 3044: 3033: 3027: 3017: 3011: 2939: 2933: 2923: 2917: 2679: 2667: 2650: 2644: 2634: 2625: 2617: 2605: 2594: 2588: 2578: 2569: 2561: 2549: 2538: 2532: 2526: 2520: 2511: 2505: 2499: 2493: 2405: 2399: 2393: 2367: 2361: 2343: 2329: 2323: 2317: 2249: 2240: 2234: 2225: 2216: 2207: 2201: 2192: 2070: 2061: 2052: 2043: 2031: 2025: 1901: 1895: 1866: 1860: 1850: 1847: 1841: 1835: 1732: 1719: 1698: 1685: 1669: 1663: 1611: 1605: 1584: 1578: 1518: 1506: 1485: 1479: 1458: 1452: 1407: 1395: 1374: 1368: 1347: 1341: 1282: 1276: 1266: 1260: 1236: 1230: 1167: 1161: 1144: 1138: 1114: 1108: 1091: 1085: 1061: 1055: 1045: 1039: 891: 885: 869: 863: 847: 841: 802: 796: 793: 784: 777: 771: 744: 738: 728: 722: 653: 647: 637: 631: 528: 515: 481: 475: 272: 210: 162: 156: 146: 140: 43:Lebesgue–Stieltjes integration 27:Lebesgue-Stieltjes integration 18:Lebesgue-Stieltjes integration 1: 3214:, and Gurevich, B. L., 1978. 3080:Riemann–Stieltjes integration 1298:for all continuous functions 996:are monotone non-decreasing. 96:, and in certain branches of 1714: 1710: 1680: 1600: 1596: 1573: 1447: 1443: 1336: 681:with respect to the measure 588:taken over all coverings of 3332:Lebesgue–Stieltjes integral 1196:Hewitt & Stromberg 1965 3638: 3347:Riemann–Stieltjes integral 3307:Henstock–Kurzweil integral 3193:Real and abstract analysis 3191:; Stromberg, Karl (1965), 2887:Riemann–Stieltjes integral 2119:are both regular, then an 594:Lebesgue–Stieltjes measure 3586:Proof that 22/7 exceeds π 1194:An alternative approach ( 1958:uses this notion of the 1907:{\displaystyle \ell (t)} 314:. To start, assume that 78:Lebesgue–Radon integrals 74:Thomas Joannes Stieltjes 37:and related branches of 3571:Euler–Maclaurin formula 3206:Theory of the Integral. 178:is defined when   3540:Russo–Vallois integral 3507:Bose–Einstein integral 3422:Parametric derivatives 3098:Halmos (1974), Sec. 15 3069: 2946: 2717: 2415: 2374: 2287: 2086: 1908: 1876: 1739: 1621: 1549: 1289: 1177: 945:in the interval , and 898: 812: 660: 575: 430:on which agrees with 284: 222: 169: 3545:Stratonovich integral 3491:Fermi–Dirac integral 3447:Numerical integration 3070: 2947: 2849:is equivalent to the 2791:Stratonovich integral 2718: 2421:The bounded interval 2416: 2375: 2288: 2087: 1909: 1877: 1740: 1634:. The outer measure 1622: 1550: 1290: 1178: 899: 813: 690:in the usual way. If 661: 576: 285: 223: 170: 59:regular Borel measure 3527:Stochastic integrals 3170:, Berlin, New York: 3078:(See the article on 2987: 2896: 2802:Lebesgue integration 2487: 2384: 2308: 2130: 2121:integration by parts 2095:Given two functions 2019: 1970:Integration by parts 1889: 1814: 1650: 1565: 1324: 1224: 1018: 835: 701: 610: 462: 453:metric outer measure 322:is non-negative and 302:is non-negative and 244: 182: 119: 94:stochastic processes 76:, are also known as 51:Lebesgue integration 3437:Contour integration 3327:Kolmogorov integral 3007: 2913: 2466:stochastic calculus 2175: 2147: 1831: 1256: 1134: 1081: 1035: 767: 718: 627: 136: 70:Henri Leon Lebesgue 64:Lebesgue–Stieltjes 3550:Skorokhod integral 3487:Dirichlet integral 3474:Improper integrals 3417:Reduction formulas 3352:Regulated integral 3317:Hellinger integral 3065: 2990: 2966:probability theory 2942: 2899: 2713: 2683: 2411: 2370: 2357: 2283: 2161: 2133: 2082: 2012:the average value 1964:conformal mappings 1904: 1872: 1817: 1759:indicator function 1735: 1617: 1545: 1543: 1285: 1242: 1173: 1120: 1067: 1021: 894: 808: 753: 704: 669:is defined as the 656: 613: 571: 555: 504: 434:on every interval 280: 218: 165: 122: 3609: 3608: 3512:Frullani integral 3482:Gaussian integral 3432:Laplace transform 3407:Inverse functions 3397:Partial fractions 3322:Khinchin integral 3282:Lebesgue integral 3195:, Springer-Verlag 3181:978-0-387-90088-9 2980:, in which case 2851:Lebesgue integral 2656: 2396: 2335: 2320: 2111:is continuous or 2077: 1954:. The concept of 1791:in the plane and 1789:rectifiable curve 1717: 1713: 1683: 1603: 1599: 1576: 1496: 1490: 1450: 1446: 1385: 1379: 1339: 671:Lebesgue integral 546: 539: 533: 495: 372:left-continuous, 292:bounded variation 55:bounded variation 47:Riemann–Stieltjes 45:generalizes both 32:measure-theoretic 16:(Redirected from 3629: 3457:Trapezoidal rule 3442:Laplace's method 3342:Pfeffer integral 3302:Darboux integral 3297:Daniell integral 3292:Bochner integral 3287:Burkill integral 3277:Riemann integral 3254: 3247: 3240: 3231: 3196: 3184: 3169: 3136: 3135: 3105: 3099: 3096: 3074: 3072: 3071: 3066: 3043: 3006: 3001: 2979: 2971: 2963: 2951: 2949: 2948: 2943: 2912: 2907: 2884: 2876: 2860: 2848: 2845:with respect to 2844: 2835:Lebesgue measure 2832: 2823: 2819: 2797:Related concepts 2788: 2784: 2780: 2752: 2722: 2720: 2719: 2714: 2709: 2708: 2696: 2695: 2682: 2621: 2620: 2565: 2564: 2480:functions) then 2475: 2471: 2460: 2456: 2452: 2448: 2440: 2432: 2420: 2418: 2417: 2412: 2398: 2397: 2389: 2379: 2377: 2376: 2371: 2356: 2355: 2354: 2322: 2321: 2313: 2303: 2299: 2292: 2290: 2289: 2284: 2174: 2169: 2146: 2141: 2118: 2114: 2110: 2106: 2102: 2098: 2091: 2089: 2088: 2083: 2078: 2073: 2038: 2011: 2007: 1996: 1985: 1981: 1961: 1953: 1949: 1945: 1941: 1937: 1925: 1921: 1917: 1913: 1911: 1910: 1905: 1881: 1879: 1878: 1873: 1830: 1825: 1806: 1802: 1786: 1764: 1756: 1744: 1742: 1741: 1736: 1731: 1730: 1718: 1706: 1705: 1697: 1696: 1684: 1676: 1662: 1661: 1642: 1633: 1626: 1624: 1623: 1618: 1604: 1592: 1591: 1577: 1569: 1554: 1552: 1551: 1546: 1544: 1537: 1533: 1494: 1488: 1451: 1439: 1438: 1432: 1428: 1383: 1377: 1340: 1332: 1312: 1305: 1294: 1292: 1291: 1286: 1255: 1250: 1216: 1205: 1200:Daniell integral 1190:Daniell integral 1182: 1180: 1179: 1174: 1160: 1159: 1133: 1128: 1107: 1106: 1080: 1075: 1034: 1029: 1010: 1006: 995: 986: 977: 944: 936: 932: 931: 903: 901: 900: 895: 884: 883: 862: 861: 827: 817: 815: 814: 809: 766: 761: 717: 712: 693: 689: 680: 665: 663: 662: 657: 626: 621: 599: 596:associated with 591: 580: 578: 577: 572: 570: 566: 565: 564: 554: 537: 531: 527: 526: 514: 513: 503: 474: 473: 446: 437: 433: 429: 413: 402: 371: 367: 356: 325: 321: 312:right-continuous 305: 301: 289: 287: 286: 281: 279: 271: 267: 227: 225: 224: 219: 217: 209: 205: 174: 172: 171: 166: 135: 130: 102:potential theory 21: 3637: 3636: 3632: 3631: 3630: 3628: 3627: 3626: 3612: 3611: 3610: 3605: 3581:Integration Bee 3554: 3521: 3468: 3464:Risch algorithm 3402:Euler's formula 3362: 3356: 3337:Pettis integral 3269: 3263: 3258: 3201:Saks, Stanisław 3187: 3182: 3172:Springer-Verlag 3160:Halmos, Paul R. 3158: 3155: 3145: 3140: 3139: 3124:10.2307/2309287 3107: 3106: 3102: 3097: 3093: 3088: 2985: 2984: 2977: 2969: 2961: 2956: 2894: 2893: 2882: 2870: 2867: 2854: 2846: 2838: 2830: 2825: 2821: 2807: 2804: 2799: 2786: 2782: 2758: 2733: 2727: 2700: 2687: 2600: 2544: 2485: 2484: 2473: 2469: 2458: 2454: 2450: 2442: 2434: 2422: 2382: 2381: 2346: 2306: 2305: 2301: 2297: 2128: 2127: 2116: 2112: 2108: 2104: 2100: 2096: 2039: 2017: 2016: 2009: 1998: 1987: 1983: 1975: 1972: 1959: 1956:extremal length 1951: 1947: 1943: 1939: 1927: 1923: 1919: 1915: 1887: 1886: 1812: 1811: 1804: 1792: 1777: 1774: 1762: 1754: 1749: 1722: 1688: 1653: 1648: 1647: 1643:is defined via 1640: 1635: 1631: 1563: 1562: 1542: 1541: 1475: 1471: 1461: 1434: 1433: 1364: 1360: 1350: 1322: 1321: 1310: 1299: 1222: 1221: 1207: 1203: 1192: 1151: 1098: 1016: 1015: 1008: 1000: 994: 988: 985: 979: 963: 952: 946: 942: 939:total variation 930: 925: 924: 923: 914: 908: 875: 853: 833: 832: 825: 699: 698: 691: 687: 682: 674: 608: 607: 597: 589: 556: 518: 505: 494: 490: 465: 460: 459: 447:arises from an 444: 439: 438:. The measure 435: 431: 427: 422: 404: 373: 369: 358: 327: 323: 315: 303: 295: 257: 253: 242: 241: 195: 191: 180: 179: 117: 116: 110: 82:Radon integrals 28: 23: 22: 15: 12: 11: 5: 3635: 3633: 3625: 3624: 3614: 3613: 3607: 3606: 3604: 3603: 3602: 3601: 3596: 3588: 3583: 3578: 3576:Gabriel's horn 3573: 3568: 3562: 3560: 3556: 3555: 3553: 3552: 3547: 3542: 3537: 3531: 3529: 3523: 3522: 3520: 3519: 3514: 3509: 3504: 3503: 3502: 3497: 3489: 3484: 3478: 3476: 3470: 3469: 3467: 3466: 3461: 3460: 3459: 3454: 3452:Simpson's rule 3444: 3439: 3434: 3429: 3424: 3419: 3414: 3412:Changing order 3409: 3404: 3399: 3394: 3389: 3388: 3387: 3382: 3377: 3366: 3364: 3358: 3357: 3355: 3354: 3349: 3344: 3339: 3334: 3329: 3324: 3319: 3314: 3309: 3304: 3299: 3294: 3289: 3284: 3279: 3273: 3271: 3265: 3264: 3259: 3257: 3256: 3249: 3242: 3234: 3228: 3227: 3209: 3198: 3185: 3180: 3166:Measure Theory 3154: 3151: 3144: 3141: 3138: 3137: 3118:(5): 419–423. 3100: 3090: 3089: 3087: 3084: 3076: 3075: 3064: 3061: 3058: 3055: 3052: 3049: 3046: 3042: 3038: 3035: 3032: 3029: 3026: 3023: 3019: 3016: 3013: 3010: 3005: 3000: 2997: 2993: 2959: 2953: 2952: 2941: 2938: 2935: 2932: 2929: 2925: 2922: 2919: 2916: 2911: 2906: 2902: 2866: 2863: 2828: 2803: 2800: 2798: 2795: 2731: 2724: 2723: 2712: 2707: 2703: 2699: 2694: 2690: 2686: 2681: 2678: 2675: 2672: 2669: 2666: 2663: 2659: 2655: 2652: 2649: 2646: 2643: 2640: 2636: 2633: 2630: 2627: 2624: 2619: 2616: 2613: 2610: 2607: 2603: 2599: 2596: 2593: 2590: 2587: 2584: 2580: 2577: 2574: 2571: 2568: 2563: 2560: 2557: 2554: 2551: 2547: 2543: 2540: 2537: 2534: 2531: 2528: 2525: 2522: 2519: 2516: 2513: 2510: 2507: 2504: 2501: 2498: 2495: 2492: 2453:provided that 2410: 2407: 2404: 2401: 2395: 2392: 2380:and similarly 2369: 2366: 2363: 2360: 2353: 2349: 2345: 2342: 2338: 2334: 2331: 2328: 2325: 2319: 2316: 2304:; that is, to 2294: 2293: 2282: 2279: 2276: 2273: 2270: 2267: 2264: 2261: 2258: 2254: 2251: 2248: 2245: 2242: 2239: 2236: 2233: 2230: 2227: 2224: 2221: 2218: 2215: 2212: 2209: 2206: 2203: 2200: 2197: 2194: 2191: 2188: 2185: 2182: 2178: 2173: 2168: 2164: 2160: 2157: 2154: 2150: 2145: 2140: 2136: 2093: 2092: 2081: 2076: 2072: 2069: 2066: 2063: 2060: 2057: 2054: 2051: 2048: 2045: 2042: 2036: 2033: 2030: 2027: 2024: 1971: 1968: 1903: 1900: 1897: 1894: 1883: 1882: 1871: 1868: 1865: 1862: 1859: 1856: 1852: 1849: 1846: 1843: 1840: 1837: 1834: 1829: 1824: 1820: 1773: 1770: 1752: 1746: 1745: 1734: 1729: 1725: 1721: 1716: 1712: 1709: 1703: 1700: 1695: 1691: 1687: 1682: 1679: 1674: 1671: 1668: 1665: 1660: 1656: 1638: 1628: 1627: 1616: 1613: 1610: 1607: 1602: 1598: 1595: 1589: 1586: 1583: 1580: 1575: 1572: 1556: 1555: 1540: 1536: 1532: 1529: 1526: 1523: 1520: 1517: 1514: 1511: 1508: 1505: 1502: 1499: 1493: 1487: 1484: 1481: 1478: 1474: 1470: 1467: 1464: 1462: 1460: 1457: 1454: 1449: 1445: 1442: 1436: 1435: 1431: 1427: 1424: 1421: 1418: 1415: 1412: 1409: 1406: 1403: 1400: 1397: 1394: 1391: 1388: 1382: 1376: 1373: 1370: 1367: 1363: 1359: 1356: 1353: 1351: 1349: 1346: 1343: 1338: 1335: 1330: 1329: 1296: 1295: 1284: 1281: 1278: 1275: 1272: 1268: 1265: 1262: 1259: 1254: 1249: 1245: 1241: 1238: 1235: 1232: 1229: 1191: 1188: 1184: 1183: 1172: 1169: 1166: 1163: 1158: 1154: 1150: 1146: 1143: 1140: 1137: 1132: 1127: 1123: 1119: 1116: 1113: 1110: 1105: 1101: 1097: 1093: 1090: 1087: 1084: 1079: 1074: 1070: 1066: 1063: 1060: 1057: 1054: 1051: 1047: 1044: 1041: 1038: 1033: 1028: 1024: 1011:is defined by 992: 983: 961: 950: 926: 912: 905: 904: 893: 890: 887: 882: 878: 874: 871: 868: 865: 860: 856: 852: 849: 846: 843: 840: 819: 818: 807: 804: 801: 798: 795: 792: 789: 786: 783: 779: 776: 773: 770: 765: 760: 756: 752: 749: 746: 743: 740: 737: 734: 730: 727: 724: 721: 716: 711: 707: 685: 667: 666: 655: 652: 649: 646: 643: 639: 636: 633: 630: 625: 620: 616: 582: 581: 569: 563: 559: 553: 549: 545: 542: 536: 530: 525: 521: 517: 512: 508: 502: 498: 493: 489: 486: 483: 480: 477: 472: 468: 442: 425: 278: 274: 270: 266: 263: 260: 256: 252: 249: 216: 212: 208: 204: 201: 198: 194: 190: 187: 176: 175: 164: 161: 158: 155: 152: 148: 145: 142: 139: 134: 129: 125: 109: 106: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 3634: 3623: 3620: 3619: 3617: 3600: 3597: 3595: 3592: 3591: 3589: 3587: 3584: 3582: 3579: 3577: 3574: 3572: 3569: 3567: 3566:Basel problem 3564: 3563: 3561: 3559:Miscellaneous 3557: 3551: 3548: 3546: 3543: 3541: 3538: 3536: 3533: 3532: 3530: 3528: 3524: 3518: 3515: 3513: 3510: 3508: 3505: 3501: 3498: 3496: 3493: 3492: 3490: 3488: 3485: 3483: 3480: 3479: 3477: 3475: 3471: 3465: 3462: 3458: 3455: 3453: 3450: 3449: 3448: 3445: 3443: 3440: 3438: 3435: 3433: 3430: 3428: 3425: 3423: 3420: 3418: 3415: 3413: 3410: 3408: 3405: 3403: 3400: 3398: 3395: 3393: 3390: 3386: 3383: 3381: 3378: 3376: 3375:Trigonometric 3373: 3372: 3371: 3368: 3367: 3365: 3359: 3353: 3350: 3348: 3345: 3343: 3340: 3338: 3335: 3333: 3330: 3328: 3325: 3323: 3320: 3318: 3315: 3313: 3312:Haar integral 3310: 3308: 3305: 3303: 3300: 3298: 3295: 3293: 3290: 3288: 3285: 3283: 3280: 3278: 3275: 3274: 3272: 3266: 3262: 3255: 3250: 3248: 3243: 3241: 3236: 3235: 3232: 3225: 3224:0-486-63519-8 3221: 3217: 3213: 3212:Shilov, G. E. 3210: 3208: 3207: 3202: 3199: 3194: 3190: 3189:Hewitt, Edwin 3186: 3183: 3177: 3173: 3168: 3167: 3161: 3157: 3156: 3152: 3150: 3149: 3142: 3133: 3129: 3125: 3121: 3117: 3113: 3112: 3104: 3101: 3095: 3092: 3085: 3083: 3081: 3062: 3053: 3047: 3036: 3030: 3024: 3021: 3014: 3008: 2995: 2991: 2983: 2982: 2981: 2975: 2967: 2962: 2936: 2930: 2927: 2920: 2914: 2909: 2904: 2900: 2892: 2891: 2890: 2888: 2880: 2874: 2864: 2862: 2858: 2852: 2842: 2836: 2831: 2820:for all real 2818: 2814: 2810: 2801: 2796: 2794: 2792: 2778: 2774: 2770: 2766: 2762: 2756: 2750: 2746: 2742: 2738: 2734: 2710: 2705: 2701: 2692: 2688: 2676: 2673: 2670: 2664: 2661: 2657: 2653: 2647: 2641: 2638: 2631: 2628: 2622: 2614: 2611: 2608: 2601: 2597: 2591: 2585: 2582: 2575: 2572: 2566: 2558: 2555: 2552: 2545: 2541: 2535: 2529: 2523: 2517: 2514: 2508: 2502: 2496: 2490: 2483: 2482: 2481: 2479: 2467: 2462: 2446: 2438: 2430: 2426: 2408: 2402: 2390: 2364: 2358: 2351: 2347: 2340: 2332: 2326: 2314: 2280: 2274: 2271: 2268: 2265: 2262: 2256: 2252: 2246: 2243: 2237: 2231: 2228: 2222: 2219: 2213: 2210: 2204: 2198: 2195: 2189: 2186: 2183: 2180: 2176: 2171: 2166: 2162: 2158: 2155: 2152: 2148: 2143: 2138: 2134: 2126: 2125: 2124: 2122: 2079: 2074: 2067: 2064: 2058: 2055: 2049: 2046: 2040: 2034: 2028: 2022: 2015: 2014: 2013: 2005: 2001: 1994: 1990: 1979: 1969: 1967: 1965: 1957: 1935: 1931: 1898: 1892: 1869: 1863: 1857: 1854: 1844: 1838: 1832: 1827: 1822: 1818: 1810: 1809: 1808: 1800: 1796: 1790: 1785: 1781: 1776:Suppose that 1771: 1769: 1766: 1760: 1755: 1727: 1723: 1707: 1701: 1693: 1689: 1677: 1672: 1666: 1658: 1654: 1646: 1645: 1644: 1641: 1614: 1608: 1593: 1587: 1581: 1570: 1561: 1560: 1559: 1538: 1534: 1530: 1527: 1524: 1521: 1515: 1512: 1509: 1503: 1500: 1497: 1491: 1482: 1476: 1472: 1465: 1463: 1455: 1440: 1429: 1425: 1422: 1419: 1416: 1413: 1410: 1404: 1401: 1398: 1392: 1389: 1386: 1380: 1371: 1365: 1361: 1354: 1352: 1344: 1333: 1320: 1319: 1318: 1316: 1315:Radon measure 1309: 1303: 1279: 1273: 1270: 1263: 1257: 1252: 1247: 1243: 1239: 1233: 1227: 1220: 1219: 1218: 1214: 1210: 1201: 1197: 1189: 1187: 1170: 1164: 1156: 1152: 1148: 1141: 1135: 1130: 1125: 1121: 1117: 1111: 1103: 1099: 1095: 1088: 1082: 1077: 1072: 1068: 1064: 1058: 1052: 1049: 1042: 1036: 1031: 1026: 1022: 1014: 1013: 1012: 1004: 997: 991: 982: 975: 971: 967: 960: 956: 949: 940: 935: 929: 922: 918: 911: 888: 880: 876: 872: 866: 858: 854: 850: 844: 838: 831: 830: 829: 822: 805: 799: 790: 787: 781: 774: 768: 763: 758: 754: 750: 747: 741: 735: 732: 725: 719: 714: 709: 705: 697: 696: 695: 688: 678: 672: 650: 644: 641: 634: 628: 623: 618: 614: 606: 605: 604: 601: 595: 587: 567: 561: 557: 551: 547: 543: 540: 534: 523: 519: 510: 506: 500: 496: 491: 484: 478: 470: 466: 458: 457: 456: 454: 450: 449:outer measure 445: 428: 420: 415: 411: 407: 400: 396: 392: 388: 384: 380: 376: 365: 361: 354: 350: 346: 342: 338: 334: 330: 319: 313: 309: 299: 293: 290:  is of 268: 264: 261: 258: 254: 250: 247: 239: 235: 231: 206: 202: 199: 196: 192: 188: 185: 159: 153: 150: 143: 137: 132: 127: 123: 115: 114: 113: 107: 105: 103: 99: 95: 91: 87: 83: 79: 75: 71: 67: 62: 60: 56: 52: 48: 44: 40: 36: 33: 19: 3535:Itô integral 3370:Substitution 3361:Integration 3331: 3215: 3204: 3192: 3165: 3146: 3115: 3109: 3103: 3094: 3077: 2957: 2954: 2872: 2868: 2856: 2840: 2826: 2816: 2812: 2808: 2805: 2776: 2772: 2768: 2764: 2760: 2748: 2744: 2740: 2736: 2729: 2725: 2463: 2444: 2436: 2428: 2424: 2295: 2094: 2003: 1999: 1992: 1988: 1977: 1973: 1933: 1929: 1884: 1798: 1794: 1783: 1779: 1775: 1767: 1750: 1747: 1636: 1629: 1557: 1301: 1297: 1212: 1208: 1193: 1185: 1002: 998: 989: 980: 973: 969: 965: 958: 954: 947: 933: 927: 920: 916: 909: 906: 823: 820: 683: 676: 668: 602: 593: 583: 451:(in fact, a 440: 423: 416: 409: 405: 398: 394: 390: 386: 382: 378: 374: 363: 359: 352: 348: 344: 340: 336: 332: 328: 317: 297: 177: 111: 86:Johann Radon 81: 77: 68:, named for 63: 42: 29: 3385:Weierstrass 2755:Itô's lemma 1974:A function 1946:-length of 1942:, then the 1922:-length of 1782: : → 455:) given by 240:and   90:probability 39:mathematics 3500:incomplete 3363:techniques 3153:References 2879:continuous 1313:defines a 1308:functional 234:measurable 228:  is 108:Definition 100:including 3270:integrals 3268:Types of 3261:Integrals 3004:∞ 2999:∞ 2996:− 2992:∫ 2901:∫ 2698:Δ 2685:Δ 2665:∈ 2658:∑ 2632:− 2602:∫ 2576:− 2546:∫ 2394:~ 2344:→ 2318:~ 2278:∞ 2260:∞ 2257:− 2247:− 2232:− 2220:− 2163:∫ 2135:∫ 2050:− 1893:ℓ 1858:ℓ 1839:γ 1833:ρ 1819:∫ 1724:χ 1715:¯ 1711:¯ 1690:χ 1681:¯ 1655:μ 1601:¯ 1597:¯ 1574:¯ 1528:≤ 1501:∈ 1448:¯ 1444:¯ 1423:≤ 1417:≤ 1390:∈ 1337:¯ 1244:∫ 1122:∫ 1118:− 1069:∫ 1023:∫ 873:− 788:− 755:∫ 751:− 706:∫ 615:∫ 548:⋃ 544:⊆ 507:μ 497:∑ 467:μ 273:→ 211:→ 124:∫ 66:integrals 3616:Category 3590:Volumes 3495:complete 3392:By parts 3162:(1974), 3143:Also see 2002: ( 1991: ( 1801:→ [0, ∞) 1797: : 1215: ) 1211:(  999:Now, if 308:monotone 98:analysis 84:, after 80:or just 35:analysis 3594:Washers 3203:(1937) 3132:2309287 2972:is the 2875:  2871:  2859:  2855:  2843:  2839:  2833:is the 2824:, then 2451:(-∞, ∞) 1980:  1976:  1928:  1793:  1778:  1772:Example 1757:is the 1304:  1300:  1005:  1001:  978:. Both 937:is the 679:  675:  586:infimum 320:  316:  300:  296:  238:bounded 3599:Shells 3222:  3178:  3130:  2869:Where 2726:where 2478:càdlàg 1885:where 1748:where 1495:  1489:  1384:  1378:  1306:. The 907:where 538:  532:  412:}) = 0 366:}) = 0 3380:Euler 3128:JSTOR 3086:Notes 2968:when 2877:is a 2806:When 2435:(-∞, 1787:is a 385:)) = 339:]) = 230:Borel 3220:ISBN 3176:ISBN 2815:) = 2785:and 2775:) = 2743:) − 2472:and 2457:and 2447:, ∞) 2300:and 2275:< 2269:< 2263:< 2115:and 2099:and 1997:and 987:and 968:) − 957:) = 919:) = 584:the 403:and 393:) − 357:and 347:) − 310:and 236:and 92:and 72:and 49:and 3120:doi 2853:of 2793:.) 2449:or 2337:lim 2107:or 1761:of 1469:inf 1358:sup 941:of 824:If 673:of 488:inf 417:By 414:). 306:is 30:In 3618:: 3174:, 3126:. 3116:67 3114:. 2861:. 2767:)Δ 2751:−) 2735:= 2441:, 2427:, 2006:−) 1995:+) 1966:. 1765:. 1673::= 748::= 600:. 408:({ 377:([ 362:({ 335:, 331:(( 104:. 41:, 3253:e 3246:t 3239:v 3226:. 3197:. 3134:. 3122:: 3063:. 3060:] 3057:) 3054:X 3051:( 3048:f 3045:[ 3041:E 3037:= 3034:) 3031:x 3028:( 3025:v 3022:d 3018:) 3015:x 3012:( 3009:f 2978:X 2970:v 2960:v 2958:μ 2940:) 2937:x 2934:( 2931:v 2928:d 2924:) 2921:x 2918:( 2915:f 2910:b 2905:a 2883:v 2873:f 2857:f 2847:g 2841:f 2829:g 2827:μ 2822:x 2817:x 2813:x 2811:( 2809:g 2787:V 2783:U 2779:, 2777:d 2773:t 2771:( 2769:V 2765:t 2763:( 2761:U 2759:Δ 2749:t 2747:( 2745:U 2741:t 2739:( 2737:U 2732:t 2730:U 2728:Δ 2711:, 2706:u 2702:V 2693:u 2689:U 2680:] 2677:t 2674:, 2671:0 2668:( 2662:u 2654:+ 2651:) 2648:s 2645:( 2642:U 2639:d 2635:) 2629:s 2626:( 2623:V 2618:] 2615:t 2612:, 2609:0 2606:( 2598:+ 2595:) 2592:s 2589:( 2586:V 2583:d 2579:) 2573:s 2570:( 2567:U 2562:] 2559:t 2556:, 2553:0 2550:( 2542:+ 2539:) 2536:0 2533:( 2530:V 2527:) 2524:0 2521:( 2518:U 2515:= 2512:) 2509:t 2506:( 2503:V 2500:) 2497:t 2494:( 2491:U 2474:V 2470:U 2459:V 2455:U 2445:a 2443:( 2439:) 2437:b 2431:) 2429:b 2425:a 2423:( 2409:. 2406:) 2403:x 2400:( 2391:V 2368:) 2365:t 2362:( 2359:U 2352:+ 2348:x 2341:t 2333:= 2330:) 2327:x 2324:( 2315:U 2302:V 2298:U 2281:. 2272:b 2266:a 2253:, 2250:) 2244:a 2241:( 2238:V 2235:) 2229:a 2226:( 2223:U 2217:) 2214:+ 2211:b 2208:( 2205:V 2202:) 2199:+ 2196:b 2193:( 2190:U 2187:= 2184:U 2181:d 2177:V 2172:b 2167:a 2159:+ 2156:V 2153:d 2149:U 2144:b 2139:a 2117:V 2113:U 2109:V 2105:U 2101:V 2097:U 2080:. 2075:2 2071:) 2068:+ 2065:a 2062:( 2059:f 2056:+ 2053:) 2047:a 2044:( 2041:f 2035:= 2032:) 2029:a 2026:( 2023:f 2010:a 2004:a 2000:f 1993:a 1989:f 1984:a 1978:f 1960:ρ 1952:γ 1948:γ 1944:ρ 1940:z 1936:) 1934:z 1932:( 1930:ρ 1924:γ 1920:ρ 1916:γ 1902:) 1899:t 1896:( 1870:, 1867:) 1864:t 1861:( 1855:d 1851:) 1848:) 1845:t 1842:( 1836:( 1828:b 1823:a 1805:γ 1799:R 1795:ρ 1784:R 1780:γ 1763:A 1753:A 1751:χ 1733:) 1728:A 1720:( 1708:I 1702:= 1699:) 1694:A 1686:( 1678:I 1670:) 1667:A 1664:( 1659:g 1639:g 1637:μ 1632:h 1615:, 1612:) 1609:h 1606:( 1594:I 1588:= 1585:) 1582:h 1579:( 1571:I 1539:. 1535:} 1531:f 1525:h 1522:, 1519:] 1516:b 1513:, 1510:a 1507:[ 1504:C 1498:f 1492:: 1486:) 1483:f 1480:( 1477:I 1473:{ 1466:= 1459:) 1456:h 1453:( 1441:I 1430:} 1426:h 1420:f 1414:0 1411:, 1408:] 1405:b 1402:, 1399:a 1396:[ 1393:C 1387:f 1381:: 1375:) 1372:f 1369:( 1366:I 1362:{ 1355:= 1348:) 1345:h 1342:( 1334:I 1311:I 1302:f 1283:) 1280:x 1277:( 1274:g 1271:d 1267:) 1264:x 1261:( 1258:f 1253:b 1248:a 1240:= 1237:) 1234:f 1231:( 1228:I 1213:f 1209:I 1204:g 1171:, 1168:) 1165:x 1162:( 1157:2 1153:g 1149:d 1145:) 1142:x 1139:( 1136:f 1131:b 1126:a 1115:) 1112:x 1109:( 1104:1 1100:g 1096:d 1092:) 1089:x 1086:( 1083:f 1078:b 1073:a 1065:= 1062:) 1059:x 1056:( 1053:g 1050:d 1046:) 1043:x 1040:( 1037:f 1032:b 1027:a 1009:g 1003:f 993:2 990:g 984:1 981:g 976:) 974:x 972:( 970:g 966:x 964:( 962:1 959:g 955:x 953:( 951:2 948:g 943:g 934:g 928:a 921:V 917:x 915:( 913:1 910:g 892:) 889:x 886:( 881:2 877:g 870:) 867:x 864:( 859:1 855:g 851:= 848:) 845:x 842:( 839:g 826:g 806:, 803:) 800:x 797:( 794:) 791:g 785:( 782:d 778:) 775:x 772:( 769:f 764:b 759:a 745:) 742:x 739:( 736:g 733:d 729:) 726:x 723:( 720:f 715:b 710:a 692:g 686:g 684:μ 677:f 654:) 651:x 648:( 645:g 642:d 638:) 635:x 632:( 629:f 624:b 619:a 598:g 590:E 568:} 562:i 558:I 552:i 541:E 535:: 529:) 524:i 520:I 516:( 511:g 501:i 492:{ 485:= 482:) 479:E 476:( 471:g 443:g 441:μ 436:I 432:w 426:g 424:μ 410:b 406:w 401:) 399:s 397:( 395:g 391:t 389:( 387:g 383:t 381:, 379:s 375:w 370:g 364:a 360:w 355:) 353:s 351:( 349:g 345:t 343:( 341:g 337:t 333:s 329:w 324:g 318:f 304:g 298:f 277:R 269:] 265:b 262:, 259:a 255:[ 251:: 248:g 232:- 215:R 207:] 203:b 200:, 197:a 193:[ 189:: 186:f 163:) 160:x 157:( 154:g 151:d 147:) 144:x 141:( 138:f 133:b 128:a 20:)

Index

Lebesgue-Stieltjes integration
measure-theoretic
analysis
mathematics
Riemann–Stieltjes
Lebesgue integration
bounded variation
regular Borel measure
integrals
Henri Leon Lebesgue
Thomas Joannes Stieltjes
Johann Radon
probability
stochastic processes
analysis
potential theory
Borel
measurable
bounded
bounded variation
monotone
right-continuous
Carathéodory's extension theorem
outer measure
metric outer measure
infimum
Lebesgue integral
total variation
Hewitt & Stromberg 1965
Daniell integral

Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.