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Itô calculus

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6315: 292:, the described evaluation strategy of the integral is conceptualized as that we are first deciding what to do, then observing the change in the prices. The integrand is how much stock we hold, the integrator represents the movement of the prices, and the integral is how much money we have in total including what our stock is worth, at any given moment. The prices of stocks and other traded financial assets can be modeled by stochastic processes such as Brownian motion or, more often, 31: 1535: 239:, defined as a limit of a certain sequence of random variables. The paths of Brownian motion fail to satisfy the requirements to be able to apply the standard techniques of calculus. So with the integrand a stochastic process, the Itô stochastic integral amounts to an integral with respect to a function which is not differentiable at any point and has infinite 5381:. This method can be extended to all local square integrable martingales by localization. Finally, the Doob–Meyer decomposition can be used to decompose any local martingale into the sum of a local square integrable martingale and a finite variation process, allowing the Itô integral to be constructed with respect to any semimartingale. 6142: 2347: 4493: 5433:
to be a semimartingale. A continuous linear extension can be used to construct the integral for all left-continuous and adapted integrands with right limits everywhere (caglad or L-processes). This is general enough to be able to apply techniques such as Itô's lemma
2651: 3776: 1128: 6291: 265:. Every time we are computing a Riemann sum, we are using a particular instantiation of the integrator. It is crucial which point in each of the small intervals is used to compute the value of the function. The limit then is taken in probability as the 5979: 1953: 3472: 5912: 2154: 4662: 2655:
This limit converges in probability. The stochastic integral of left-continuous processes is general enough for studying much of stochastic calculus. For example, it is sufficient for applications of Itô's Lemma, changes of measure via
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of the partition is going to zero. Numerous technical details have to be taken care of to show that this limit exists and is independent of the particular sequence of partitions. Typically, the left end of the interval is used.
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Proofs that the Itô integral is well defined typically proceed by first looking at very simple integrands, such as piecewise constant, left continuous and adapted processes where the integral can be written explicitly. Such
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which can be proved directly for simple predictable integrands. As with the case above for Brownian motion, a continuous linear extension can be used to uniquely extend to all predictable integrands satisfying
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Many other proofs exist which apply similar methods but which avoid the need to use the Doob–Meyer decomposition theorem, such as the use of the quadratic variation in the Itô isometry, the use of the
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is adapted corresponds to the necessary restriction that the trading strategy can only make use of the available information at any time. This prevents the possibility of unlimited gains through
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allows integration to be defined with respect to finite variation processes, so the existence of the Itô integral for semimartingales will follow from any construction for local martingales.
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term. This term comes from the fact that Itô calculus deals with processes with non-zero quadratic variation, which only occurs for infinite variation processes (such as Brownian motion). If
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This differs from the chain rule used in standard calculus due to the term involving the quadratic covariation . The formula can be generalized to include an explicit time-dependence in
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The Itô calculus is first and foremost defined as an integral calculus as outlined above. However, there are also different notions of "derivative" with respect to Brownian motion:
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if the correlation time of the noise term approaches zero. For a recent treatment of different interpretations of stochastic differential equations see for example (
1286: 8032: 7025: 6137:{\displaystyle {\dot {y}}={\frac {\partial y}{\partial x_{j}}}{\dot {x}}_{j}+{\frac {1}{2}}{\frac {\partial ^{2}y}{\partial x_{k}\,\partial x_{l}}}g_{km}g_{ml}.} 4752: 3799: 7562: 7542: 3283:
is an important result in stochastic calculus. The integration by parts formula for the Itô integral differs from the standard result due to the inclusion of a
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The discontinuities of the stochastic integral are given by the jumps of the integrator multiplied by the integrand. The jump of a càdlàg process at a time
2342:{\displaystyle dY_{t}=f^{\prime }(X_{t})\mu _{t}\,dt+{\tfrac {1}{2}}f^{\prime \prime }(X_{t})\sigma _{t}^{2}\,dt+f^{\prime }(X_{t})\sigma _{t}\,dB_{t}.} 5397:
instead of the Itô isometry. The latter applies directly to local martingales without having to first deal with the square integrable martingale case.
7863: 7873: 7547: 6908: 6813: 7557: 3214:. A consequence of this is that the quadratic variation process of a stochastic integral is equal to an integral of a quadratic variation process, 2717: 7915: 4030: 7630: 3507:
formula which applies to the Itô integral. It is one of the most powerful and frequently used theorems in stochastic calculus. For a continuous
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can only depend on information available up until this time. Roughly speaking, one chooses a sequence of partitions of the interval from 0 to
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stochastic process that can be expressed as the sum of an integral with respect to Brownian motion and an integral with respect to time,
1382: 1212: 8270: 8007: 6643: 6723: 3881: 130: 7117: 7018: 6448: 6886: 4223:. There are examples of integrals of bounded predictable processes with respect to martingales which are not themselves martingales. 8072: 7650: 7620: 6808: 6609: 6591: 6573: 6555: 6534: 6466: 6428: 6386: 2665: 1140: 5013: 4488:{\displaystyle c\mathbb {E} \left_{t}^{\frac {p}{2}}\right]\leq \mathbb {E} \left\leq C\mathbb {E} \left_{t}^{\frac {p}{2}}\right]} 3056: 7923: 7907: 8117: 7822: 7042: 6788: 5678: 2661: 300:). Then, the Itô stochastic integral represents the payoff of a continuous-time trading strategy consisting of holding an amount 117: 5171: 4175:
to be the unique extension of this isometry from a certain class of simple integrands to all bounded and predictable processes.
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form the smallest class that is closed under taking limits of sequences and contains all adapted left-continuous processes. If
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is integrable. The Itô isometry is often used as an important step in the construction of the stochastic integral, by defining
2424: 1133: 840: 210: 7961: 7289: 6738: 6698: 3478: 836: 124: 7585: 7392: 7311: 8047: 7927: 2993:. A particular consequence of this is that integrals with respect to a continuous process are always themselves continuous. 2646:{\displaystyle \int _{0}^{t}H\,dX=\lim _{n\to \infty }\sum _{t_{i-1},t_{i}\in \pi _{n}}H_{t_{i-1}}(X_{t_{i}}-X_{t_{i-1}}).} 8306: 8275: 8052: 7888: 7787: 7772: 7184: 7100: 7011: 6798: 3115: 2676: 8062: 7698: 5685:, are used, rather than stochastic integrals. Here an Itô stochastic differential equation (SDE) is often formulated via 321:: buying the stock just before each uptick in the market and selling before each downtick. Similarly, the condition that 8301: 8057: 6977: 7660: 6962: 5635:, Theorem 36.5). This representation theorem can be interpreted formally as saying that α is the "time derivative" of 3771:{\displaystyle df(X_{t})=\sum _{i=1}^{n}f_{i}(X_{t})\,dX_{t}^{i}+{\frac {1}{2}}\sum _{i,j=1}^{n}f_{i,j}(X_{t})\,d_{t}.} 7244: 7189: 7105: 6761: 5007: 3504: 2352: 1123:{\displaystyle \int _{0}^{t}H\,dB=\lim _{n\rightarrow \infty }\sum _{\in \pi _{n}}H_{t_{i-1}}(B_{t_{i}}-B_{t_{i-1}}).} 278: 231:. The result of the integration is then another stochastic process. Concretely, the integral from 0 to any particular 7992: 7982: 7625: 7595: 6931: 6898: 6286:{\displaystyle {\dot {x}}_{k}=h_{k}+g_{kl}\xi _{l}-{\frac {1}{2}}{\frac {\partial g_{kl}}{\partial {x_{m}}}}g_{ml}.} 8311: 7997: 7162: 7060: 6766: 6378: 506: 7708: 7284: 7065: 5442:
can be used to prove the dominated convergence theorem and extend the integral to general predictable integrands (
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in probability. The uniqueness of the extension from left-continuous to predictable integrands is a result of the
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SDEs frequently occur in physics in Stratonovich form, as limits of stochastic differential equations driven by
7299: 7274: 6776: 2669: 2457: 1144: 909: 8017: 7600: 7135: 8212: 8202: 7893: 7675: 7414: 7279: 7090: 6636: 505:. As Itô calculus is concerned with continuous-time stochastic processes, it is assumed that an underlying 7497: 8154: 8082: 7341: 4870: 243:
over every time interval. The main insight is that the integral can be defined as long as the integrand
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This is defined for all locally bounded and predictable integrands. More generally, it is required that
1948:{\displaystyle \int _{0}^{t}H\,dX=\int _{0}^{t}H_{s}\sigma _{s}\,dB_{s}+\int _{0}^{t}H_{s}\mu _{s}\,ds.} 784: 729: 687: 650: 599: 7645: 6314: 2675:
The integral extends to all predictable and locally bounded integrands, in a unique way, such that the
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where, again, the limit can be shown to converge in probability. The stochastic integral satisfies the
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and bounded predictable integrand, the stochastic integral preserves the space of càdlàg martingales
3280: 2795: 1717: 289: 113: 2359:. It differs from the standard result due to the additional term involving the second derivative of 2105: 8247: 8087: 8012: 7817: 7577: 7487: 7377: 6918: 6833: 6828: 6718: 6329: 3844:
is also a local martingale. For integrands which are not locally bounded, there are examples where
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is a right-continuous, increasing and predictable process starting at zero. This uniquely defines
3467:{\displaystyle X_{t}Y_{t}=X_{0}Y_{0}+\int _{0}^{t}X_{s-}\,dY_{s}+\int _{0}^{t}Y_{s-}\,dX_{s}+_{t}} 878: 8217: 8182: 8097: 8067: 7837: 7832: 7655: 7492: 7157: 7095: 7034: 6941: 6878: 6771: 6743: 6708: 6629: 6484: 6400: 6320: 5907:{\displaystyle \langle \xi _{k}(t_{1})\,\xi _{l}(t_{2})\rangle =\delta _{kl}\delta (t_{1}-t_{2})} 5462: 266: 101: 61:) with respect to itself, i.e., both the integrand and the integrator are Brownian. It turns out 7898: 5924: 297: 6617:
Mathematical Finance Programming in TI-Basic, which implements Ito calculus for TI-calculators.
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is adapted implies that the stochastic integral will not diverge when calculated as a limit of
8237: 8042: 7693: 7450: 7367: 7336: 7229: 7209: 7199: 7055: 7050: 6990: 6967: 6903: 6873: 6865: 6843: 6823: 6713: 6605: 6587: 6569: 6551: 6543: 6530: 6510: 6462: 6444: 6424: 6404: 6382: 6334: 5973: 5915: 5766: 5682: 4657:{\displaystyle \mathbb {E} \left\leq C\mathbb {E} \left_{t})^{\frac {p}{2}}\right]<\infty } 3802: 3494: 2410: 2087: 274: 240: 7903: 7640: 5508: 8257: 8144: 8027: 7397: 7372: 7321: 7249: 7172: 7125: 6985: 6848: 6733: 6693: 6688: 6683: 6678: 6668: 6502: 3819: 2657: 2401: 864: 8222: 8122: 8107: 7868: 7802: 7480: 7424: 7407: 7152: 6972: 6855: 6728: 5502: 1579: 937: 872: 250: 236: 224: 206: 105: 30: 8037: 7269: 3188:
The stochastic integral commutes with the operation of taking quadratic covariations. If
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Path Integrals in Quantum Mechanics, Statistics, Polymer Physics, and Financial Markets
6416: 6371: 6354: 6349: 2938: 2420: 2378: 1695:{\displaystyle X_{t}=X_{0}+\int _{0}^{t}\sigma _{s}\,dB_{s}+\int _{0}^{t}\mu _{s}\,ds.} 1567: 854: 228: 123:
The central concept is the Itô stochastic integral, a stochastic generalization of the
109: 8290: 8129: 7670: 7507: 7502: 7460: 7402: 7224: 7140: 7080: 6957: 6339: 6296: 5390: 5090: 3974: 2997: 585:{\displaystyle (\Omega ,{\mathcal {F}},({\mathcal {F}}_{t})_{t\geq 0},\mathbb {P} ).} 93: 4193:, and bounded predictable integrand, the stochastic integral preserves the space of 715:-Brownian motion, which is just a standard Brownian motion with the properties that 8187: 8149: 7703: 7635: 7524: 7519: 7331: 7264: 7239: 7075: 6703: 5466: 1526:
is bounded or, more generally, when the integral on the right hand side is finite.
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can be used. Then, the integral can be shown to exist separately with respect to
5093:. This method allows the integral to be defined with respect to any Itô process. 8232: 7751: 7746: 7741: 7731: 7534: 7475: 7470: 7434: 7194: 7085: 2064:{\displaystyle \int _{0}^{t}\left(H^{2}\sigma ^{2}+|H\mu |\right)ds<\infty .} 844: 328: 262: 6506: 273:
Important results of Itô calculus include the integration by parts formula and
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in such way that the Itô isometry still holds. It can then be extended to all
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in analysis. The integrands and the integrators are now stochastic processes:
1369:{\displaystyle \int _{0}^{t}H\,dB=\lim _{n\to \infty }\int _{0}^{t}H_{n}\,dB} 1209:
of left-continuous, adapted and locally bounded processes, in the sense that
7736: 2090:. In its simplest form, for any twice continuously differentiable function 17: 6514: 4837:{\displaystyle H\cdot X_{t}\equiv \mathbf {1} _{\{t>T\}}A(X_{t}-X_{T}).} 3995:
For bounded integrands, the Itô stochastic integral preserves the space of
1534: 442:{\displaystyle Y_{t}=\int _{0}^{t}H\,dX\equiv \int _{0}^{t}H_{s}\,dX_{s},} 6652: 5010:, the integral extends uniquely to all predictable integrands satisfying 4887:
can be used to prove the Itô isometry for simple predictable integrands,
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This is extended to all simple predictable processes by the linearity of
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The following result allows to express martingales as Itô integrals: if
4680:-integrable martingale. More generally, this statement is true whenever 1802:{\displaystyle \int _{0}^{t}(\sigma _{s}^{2}+|\mu _{s}|)\,ds<\infty } 7563:
Generalized autoregressive conditional heteroskedasticity (GARCH) model
7003: 5610:{\displaystyle M_{t}=M_{0}+\int _{0}^{t}\alpha _{s}\,\mathrm {d} B_{s}} 5465:
provides a theory of differentiation for random variables defined over
5647:, since α is precisely the process that must be integrated up to time 6602:
Diffusions, Markov processes and martingales - Volume 2: Itô calculus
1147:, the integral is needed for processes that are not continuous. The 471:). Alternatively, the integral is often written in differential form 281:
formula. These differ from the formulas of standard calculus, due to
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Stochastic Differential Equations: An Introduction with Applications
5421:| ≤ 1 is simple previsible} is bounded in probability for each time 3818:
An important property of the Itô integral is that it preserves the
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are bounded. Associativity of stochastic integration implies that
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The result is similar to the integration by parts theorem for the
2365:, which comes from the property that Brownian motion has non-zero 1533: 847:; such a limit does not necessarily exist pathwise. Suppose that 29: 6435:, with generalizations of Itô's lemma for non-Gaussian processes. 5183:, a generalized form of the Itô isometry can be used. First, the 3185:. In fact, it converges uniformly on compact sets in probability. 1813:. The stochastic integral can be extended to such Itô processes, 1202:-integrable. Any such process can be approximated by a sequence 4199:-integrable martingales. These are càdlàg martingales such that 3959:
The most general statement for a discontinuous local martingale
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is a Brownian motion and it is required that σ is a predictable
7007: 6625: 2664:. However, it is inadequate for other important topics such as 1570:. Off the tide of wavelet, the motion of Itô process is stable. 6475:
Lau, Andy; Lubensky, Tom (2007), "State-dependent diffusion",
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with respect to the filtration generated by a Brownian motion
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exists, and can be calculated as a limit of Riemann sums. Let
5241:. The Itô isometry for square integrable martingales is then 3854:
is not a local martingale. However, this can only occur when
2787:{\displaystyle \int _{0}^{t}H_{n}\,dX\to \int _{0}^{t}H\,dX,} 2431:. For a left continuous, locally bounded and adapted process 6621: 3866:
is a continuous local martingale then a predictable process
2291: 2240: 2237: 2179: 791: 736: 694: 657: 606: 541: 527: 4140:{\displaystyle \mathbb {E} \left=\mathbb {E} \left\right].} 2811:
can be defined even in cases where the predictable process
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The Itô integral can be defined in a manner similar to the
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Autoregressive conditional heteroskedasticity (ARCH) model
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Alternative proofs exist only making use of the fact that
4023:, the quadratic variation process is integrable, and the 7071:
Independent and identically distributed random variables
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The following properties can be found in works such as (
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with mesh width going to zero, then the Itô integral of
6423:, 4th edition, World Scientific (Singapore); Paperback 4701:
processes are linear combinations of terms of the form
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Autoregressive integrated moving average (ARIMA) model
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This equality holds more generally for any martingale
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An important result for the study of Itô processes is
253:, which loosely speaking means that its value at time 6156: 5982: 5927: 5796: 5769: 5691: 5539: 5511: 5487:
is a square-integrable martingale on a time interval
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However, this is not always true in the case where 4033: 3884: 3784: 3561: 3305: 3220: 3059: 2720: 2474: 2157: 2108: 1981: 1819: 1726: 1588: 1385: 1289: 1215: 945: 881: 787: 732: 690: 653: 602: 515: 355: 133: 5756:{\displaystyle {\dot {x}}_{k}=h_{k}+g_{kl}\xi _{l},} 5366:{\displaystyle \mathbb {E} \left=\mathbb {E} \left,} 4999:{\displaystyle \mathbb {E} \left=\mathbb {E} \left.} 8170: 7975: 7937: 7846: 7760: 7717: 7684: 7576: 7533: 7443: 7360: 7116: 7041: 6950: 6917: 6864: 6752: 6659: 1513:{\displaystyle \mathbb {E} \left=\mathbb {E} \left} 1276:{\displaystyle \int _{0}^{t}(H-H_{n})^{2}\,ds\to 0} 628:represents the information available up until time 449:is itself a stochastic process with time parameter 6522: 6439:He, Sheng-wu; Wang, Jia-gang; Yan, Jia-an (1992), 6370: 6285: 6136: 5955: 5906: 5782: 5755: 5609: 5517: 5365: 5075: 4998: 4836: 4656: 4487: 4139: 3934: 3793: 3770: 3466: 3263: 3206:-integrable process will also be -integrable, and 3181:. Convergence is in probability at each time  3104: 2786: 2645: 2341: 2143: 2063: 1947: 1801: 1694: 1512: 1368: 1275: 1122: 900: 804: 749: 707: 670: 619: 584: 441: 191: 6566:Stochastic Integration and Differential Equations 3935:{\displaystyle \int _{0}^{t}H^{2}\,d<\infty ,} 2386:. These are processes which can be decomposed as 192:{\displaystyle Y_{t}=\int _{0}^{t}H_{s}\,dX_{s},} 7430:Stochastic chains with memory of variable length 2504: 1319: 975: 3526:and twice continuously differentiable function 2419:. Important examples of such processes include 2351:This is the stochastic calculus version of the 1716:-integrable process, and μ is predictable and ( 5632: 3834:is a locally bounded predictable process then 2926: 2377:The Itô integral is defined with respect to a 468: 7019: 6637: 6441:Semimartingale Theory and Stochastic Calculus 5469:, including an integration by parts formula ( 5076:{\displaystyle \mathbb {E} \left<\infty ,} 3474:where is the quadratic covariation process. 3105:{\displaystyle J\cdot (K\cdot X)=(JK)\cdot X} 27:Calculus of stochastic differential equations 8: 5853: 5797: 5346: 5339: 4794: 4782: 4017:. For any such square integrable martingale 895: 882: 6300: 831:Integration with respect to Brownian motion 7558:Autoregressive–moving-average (ARMA) model 7026: 7012: 7004: 6644: 6630: 6622: 6584:Continuous martingales and Brownian motion 6457:Karatzas, Ioannis; Shreve, Steven (1991), 6146:An Itô SDE as above also corresponds to a 5177:For a càdlàg square integrable martingale 1283:in probability. Then, the Itô integral is 6604:, Cambridge: Cambridge University Press, 6525:The Malliavin calculus and related topics 6488: 6271: 6257: 6252: 6238: 6228: 6218: 6209: 6196: 6183: 6170: 6159: 6158: 6155: 6122: 6109: 6096: 6088: 6082: 6064: 6057: 6047: 6038: 6027: 6026: 6016: 5998: 5984: 5983: 5981: 5944: 5926: 5895: 5882: 5863: 5844: 5831: 5826: 5817: 5804: 5795: 5774: 5768: 5744: 5731: 5718: 5705: 5694: 5693: 5690: 5601: 5592: 5591: 5585: 5575: 5570: 5557: 5544: 5538: 5510: 5443: 5427:, which is an alternative definition for 5349: 5335: 5329: 5324: 5314: 5309: 5296: 5295: 5281: 5271: 5249: 5248: 5246: 5052: 5046: 5036: 5031: 5018: 5017: 5015: 4981: 4975: 4970: 4960: 4955: 4942: 4941: 4927: 4917: 4895: 4894: 4892: 4822: 4809: 4781: 4776: 4766: 4754: 4632: 4622: 4603: 4587: 4586: 4569: 4559: 4554: 4526: 4525: 4523: 4469: 4464: 4445: 4444: 4427: 4417: 4412: 4396: 4395: 4376: 4371: 4352: 4351: 4346: 4116: 4110: 4100: 4095: 4082: 4081: 4067: 4057: 4035: 4034: 4032: 3910: 3904: 3894: 3889: 3883: 3783: 3759: 3749: 3736: 3725: 3716: 3697: 3687: 3670: 3656: 3647: 3642: 3634: 3625: 3612: 3602: 3591: 3575: 3560: 3458: 3433: 3425: 3416: 3406: 3401: 3388: 3380: 3371: 3361: 3356: 3343: 3333: 3320: 3310: 3304: 3243: 3219: 3058: 2774: 2765: 2760: 2746: 2740: 2730: 2725: 2719: 2623: 2618: 2603: 2598: 2577: 2572: 2560: 2547: 2528: 2523: 2507: 2493: 2484: 2479: 2473: 2330: 2322: 2316: 2303: 2290: 2276: 2270: 2265: 2252: 2236: 2220: 2210: 2204: 2191: 2178: 2165: 2156: 2132: 2113: 2107: 2036: 2025: 2016: 2006: 1991: 1986: 1980: 1935: 1929: 1919: 1909: 1904: 1891: 1883: 1877: 1867: 1857: 1852: 1838: 1829: 1824: 1818: 1786: 1778: 1772: 1763: 1754: 1749: 1736: 1731: 1725: 1682: 1676: 1666: 1661: 1648: 1640: 1634: 1624: 1619: 1606: 1593: 1587: 1538:A single realization of Itô process with 1498: 1492: 1487: 1477: 1472: 1459: 1458: 1445: 1434: 1426: 1420: 1410: 1405: 1387: 1386: 1384: 1359: 1353: 1343: 1338: 1322: 1308: 1299: 1294: 1288: 1260: 1254: 1244: 1225: 1220: 1214: 1100: 1095: 1080: 1075: 1054: 1049: 1037: 1021: 1002: 994: 978: 964: 955: 950: 944: 889: 880: 796: 790: 789: 786: 741: 735: 734: 731: 699: 693: 692: 689: 662: 656: 655: 652: 611: 605: 604: 601: 572: 571: 556: 546: 540: 539: 526: 525: 514: 430: 422: 416: 406: 401: 387: 378: 373: 360: 354: 180: 172: 166: 156: 151: 138: 132: 6909:Common integrals in quantum field theory 4226:The maximum process of a càdlàg process 2922: 824: 332: 311:. In this situation, the condition that 220: 8297:Definitions of mathematical integration 6819:Differentiation under the integral sign 6600:Rogers, Chris; Williams, David (2000), 6459:Brownian Motion and Stochastic Calculus 6395:Cohen, Samuel; Elliott, Robert (2015), 5470: 5435: 205:is a locally square-integrable process 7864:Doob's martingale convergence theorems 5166:, to get the integral with respect to 4518:is a bounded predictable process then 4313:, there exist positive constants  4289:then this is the same as the space of 7616:Constant elasticity of variance (CEV) 7606:Chan–Karolyi–Longstaff–Sanders (CKLS) 5187:is used to show that a decomposition 1157:is any predictable process such that 453:, which is also sometimes written as 7: 6397:Stochastic Calculus and Applications 2902:-integrable processes is denoted by 2801:In general, the stochastic integral 2151:is itself an Itô process satisfying 112:). It has important applications in 5395:Burkholder–Davis–Gundy inequalities 4304:Burkholder–Davis–Gundy inequalities 2708:for a locally bounded process  2102:as described above, it states that 8103:Skorokhod's representation theorem 7884:Law of large numbers (weak/strong) 6431:. Fifth edition available online: 6249: 6231: 6089: 6075: 6061: 6009: 6001: 5593: 5067: 4651: 3987:exists and is a local martingale. 3926: 3499:Itô's lemma is the version of the 2666:martingale representation theorems 2514: 2055: 1796: 1329: 1141:martingale representation theorems 985: 805:{\displaystyle {\mathcal {F}}_{t}} 750:{\displaystyle {\mathcal {F}}_{t}} 708:{\displaystyle {\mathcal {F}}_{t}} 671:{\displaystyle {\mathcal {F}}_{t}} 620:{\displaystyle {\mathcal {F}}_{t}} 519: 25: 8073:Martingale representation theorem 6582:Revuz, Daniel; Yor, Marc (1999), 6443:, Science Press, CRC Press Inc., 6373:Stochastic Integration With Jumps 5679:stochastic differential equations 5406:is càdlàg, adapted, and the set { 4501:. These are used to show that if 4495:for all càdlàg local martingales 3999:martingales, which is the set of 2662:stochastic differential equations 118:stochastic differential equations 8118:Stochastic differential equation 8008:Doob's optional stopping theorem 8003:Doob–Meyer decomposition theorem 6313: 5669:, as in deterministic calculus. 5641:with respect to Brownian motion 5185:Doob–Meyer decomposition theorem 5122:plus a finite variation process 4777: 1975:be Lebesgue integrable, so that 1132:It can be shown that this limit 875:and locally bounded process. If 7988:Convergence of random variables 7874:Fisher–Tippett–Gnedenko theorem 5916:Einstein's summation convention 5450:Differentiation in Itô calculus 5233:predictable quadratic variation 1139:For some applications, such as 678:-measurable. A Brownian motion 7586:Binomial options pricing model 5950: 5937: 5901: 5875: 5850: 5837: 5823: 5810: 5278: 5258: 5231:, which is referred to as the 5140:and combined using linearity, 4924: 4904: 4828: 4802: 4629: 4619: 4612: 4596: 4566: 4551: 4538: 4535: 4461: 4454: 4424: 4405: 4368: 4361: 4126: 4120: 4064: 4044: 3956:is always a local martingale. 3920: 3914: 3756: 3729: 3722: 3709: 3631: 3618: 3581: 3568: 3455: 3442: 3258: 3252: 3233: 3221: 3093: 3084: 3078: 3066: 3013:be predictable processes, and 2937:process. Furthermore, it is a 2753: 2637: 2591: 2511: 2373:Semimartingales as integrators 2309: 2296: 2258: 2245: 2197: 2184: 2144:{\displaystyle Y_{t}=f(X_{t})} 2138: 2125: 2037: 2026: 1783: 1779: 1764: 1742: 1326: 1267: 1251: 1231: 1114: 1068: 1027: 995: 982: 576: 553: 535: 516: 1: 8053:Kolmogorov continuity theorem 7889:Law of the iterated logarithm 5790:is Gaussian white noise with 5096:For a general semimartingale 4743:-measurable random variables 3991:Square integrable martingales 3200:are semimartingales then any 2933:The stochastic integral is a 2677:dominated convergence theorem 2096:on the reals and Itô process 8058:Kolmogorov extension theorem 7737:Generalized queueing network 7245:Interacting particle systems 4873:with zero mean and variance 4749:, for which the integral is 4295:-integrable martingales, by 3511:-dimensional semimartingale 3264:{\displaystyle =H^{2}\cdot } 2817:is not locally bounded. If 901:{\displaystyle \{\pi _{n}\}} 7190:Continuous-time random walk 6724:Lebesgue–Stieltjes integral 6564:Protter, Philip E. (2004), 5673:Itô calculus for physicists 5617:almost surely, and for all 5172:Lebesgue–Stieltjes integral 5008:continuous linear extension 4869:, the property that it has 3878:-integrable if and only if 3279:As with ordinary calculus, 3053:-integrable, in which case 2854:-integrable, with integral 2071:Such predictable processes 857:(Brownian motion) and that 8328: 8198:Extreme value theory (EVT) 7998:Doob decomposition theorem 7290:Ornstein–Uhlenbeck process 7061:Chinese restaurant process 6739:Riemann–Stieltjes integral 6699:Henstock–Kurzweil integral 6568:(2nd ed.), Springer, 6507:10.1103/PhysRevE.76.011123 6461:(2nd ed.), Springer, 6379:Cambridge University Press 5956:{\displaystyle y=y(x_{k})} 5633:Rogers & Williams 2000 5505:square integrable process 4306:state that, for any given 3828:is a local martingale and 3492: 3479:Riemann–Stieltjes integral 3160:-integrable process. then 3041:integrable if and only if 2964:, and is often denoted by 2927:Rogers & Williams 2000 837:Riemann–Stieltjes integral 507:filtered probability space 469:Rogers & Williams 2000 223:, Chapter IV), which is a 125:Riemann–Stieltjes integral 8266: 8078:Optional stopping theorem 7879:Large deviation principle 7631:Heath–Jarrow–Morton (HJM) 7568:Moving-average (MA) model 7553:Autoregressive (AR) model 7378:Hidden Markov model (HMM) 7312:Schramm–Loewner evolution 6978:Proof that 22/7 exceeds π 6369:Bichteler, Klaus (2002), 5501:, then there is a unique 5477:Martingale representation 5089:-integrable processes by 4692:Existence of the integral 3555:is a semimartingale and, 3299:are semimartingales then 2468:with mesh going to zero, 484:, which is equivalent to 294:geometric Brownian motion 96:, extends the methods of 7993:Doléans-Dade exponential 7823:Progressively measurable 7621:Cox–Ingersoll–Ross (CIR) 5783:{\displaystyle \xi _{j}} 5116:into a local martingale 1134:converges in probability 8213:Mathematical statistics 8203:Large deviations theory 8033:Infinitesimal generator 7894:Maximal ergodic theorem 7813:Piecewise-deterministic 7415:Random dynamical system 7280:Markov additive process 6963:Euler–Maclaurin formula 6521:Nualart, David (2006), 6301:Lau & Lubensky 2007 5518:{\displaystyle \alpha } 4212:is finite for all  4182:-Integrable martingales 3801:and in other ways (see 2660:, and for the study of 1720:) integrable. That is, 684:is understood to be an 51:) of a Brownian motion 8048:Karhunen–Loève theorem 7983:Cameron–Martin formula 7947:Burkholder–Davis–Gundy 7342:Variance gamma process 6932:Russo–Vallois integral 6899:Bose–Einstein integral 6814:Parametric derivatives 6287: 6138: 5957: 5908: 5784: 5757: 5611: 5519: 5367: 5077: 5000: 4871:independent increments 4863:For a Brownian motion 4838: 4658: 4489: 4141: 3936: 3860:is not continuous. If 3809:Martingale integrators 3795: 3772: 3692: 3607: 3481:but has an additional 3468: 3265: 3106: 2974:. With this notation, 2788: 2647: 2343: 2145: 2065: 1949: 1803: 1696: 1571: 1514: 1370: 1277: 1124: 902: 806: 751: 709: 672: 621: 586: 443: 227:or, more generally, a 193: 86: 8178:Actuarial mathematics 8140:Uniform integrability 8135:Stratonovich integral 8063:Lévy–Prokhorov metric 7967:Marcinkiewicz–Zygmund 7854:Central limit theorem 7456:Gaussian random field 7285:McKean–Vlasov process 7205:Dyson Brownian motion 7066:Galton–Watson process 6937:Stratonovich integral 6883:Fermi–Dirac integral 6839:Numerical integration 6345:Stratonovich integral 6288: 6139: 5963:is a function of the 5958: 5909: 5785: 5758: 5612: 5520: 5440:Khintchine inequality 5368: 5078: 5001: 4839: 4659: 4490: 4142: 3937: 3796: 3773: 3666: 3587: 3488: 3469: 3285:quadratic covariation 3266: 3116:Dominated convergence 3107: 2789: 2648: 2344: 2146: 2066: 1950: 1804: 1697: 1537: 1515: 1371: 1278: 1178:then the integral of 1149:predictable processes 1125: 903: 807: 757:-measurable and that 752: 710: 673: 622: 587: 444: 307:of the stock at time 194: 33: 8307:Mathematical finance 8253:Time series analysis 8208:Mathematical finance 8093:Reflection principle 7420:Regenerative process 7220:Fleming–Viot process 7035:Stochastic processes 6919:Stochastic integrals 6586:, Berlin: Springer, 6550:, Berlin: Springer, 6154: 5980: 5925: 5794: 5767: 5689: 5677:In physics, usually 5537: 5509: 5458:Malliavin derivative 5393:, or the use of the 5245: 5211:is a martingale and 5102:, the decomposition 5014: 4891: 4753: 4522: 4345: 4325:that depend on  4031: 3882: 3782: 3559: 3303: 3281:integration by parts 3275:Integration by parts 3218: 3057: 2923:Revuz & Yor 1999 2796:monotone class lemma 2718: 2472: 2155: 2106: 1979: 1817: 1724: 1586: 1578:is defined to be an 1383: 1287: 1213: 1190:can be defined, and 943: 879: 841:limit in probability 825:Revuz & Yor 1999 785: 730: 688: 651: 600: 513: 353: 333:Revuz & Yor 1999 290:mathematical finance 221:Revuz & Yor 1999 131: 114:mathematical finance 102:stochastic processes 8302:Stochastic calculus 8248:Stochastic analysis 8088:Quadratic variation 8083:Prokhorov's theorem 8018:Feynman–Kac formula 7488:Markov random field 7136:Birth–death process 6829:Contour integration 6719:Kolmogorov integral 6499:2007PhRvE..76a1123L 6330:Stochastic calculus 5580: 5334: 5319: 5041: 4980: 4965: 4728:for stopping times 4664:and, consequently, 4564: 4479: 4422: 4386: 4297:Doob's inequalities 4105: 3899: 3652: 3505:change of variables 3483:quadratic variation 3411: 3366: 3025:-integrable. Then, 2770: 2735: 2679:holds. That is, if 2489: 2367:quadratic variation 2353:change of variables 2275: 1996: 1914: 1862: 1834: 1759: 1741: 1671: 1629: 1497: 1482: 1415: 1348: 1304: 1230: 960: 411: 383: 283:quadratic variation 279:change of variables 161: 8218:Probability theory 8098:Skorokhod integral 8068:Malliavin calculus 7651:Korn-Kreer-Lenssen 7535:Time series models 7498:Pitman–Yor process 6942:Skorokhod integral 6879:Dirichlet integral 6866:Improper integrals 6809:Reduction formulas 6744:Regulated integral 6709:Hellinger integral 6544:Øksendal, Bernt K. 6321:Mathematics portal 6283: 6134: 5953: 5904: 5780: 5753: 5683:Langevin equations 5607: 5566: 5515: 5463:Malliavin calculus 5363: 5320: 5305: 5073: 5027: 4996: 4966: 4951: 4834: 4699:simple predictable 4654: 4550: 4512:is integrable and 4485: 4460: 4408: 4367: 4278:is finite for all 4137: 4091: 4013:is finite for all 3975:locally integrable 3932: 3885: 3794:{\displaystyle f,} 3791: 3768: 3638: 3464: 3397: 3352: 3261: 3102: 2784: 2756: 2721: 2658:Girsanov's theorem 2643: 2567: 2518: 2475: 2339: 2261: 2230: 2141: 2061: 1982: 1945: 1900: 1848: 1820: 1799: 1745: 1727: 1692: 1657: 1615: 1572: 1510: 1483: 1468: 1401: 1366: 1334: 1333: 1290: 1273: 1216: 1120: 1044: 989: 946: 898: 802: 781:is independent of 747: 705: 668: 617: 582: 439: 397: 369: 349:defined before as 189: 147: 87: 8312:Integral calculus 8284: 8283: 8238:Signal processing 7957:Doob's upcrossing 7952:Doob's martingale 7916:Engelbert–Schmidt 7859:Donsker's theorem 7793:Feller-continuous 7661:Rendleman–Bartter 7451:Dirichlet process 7368:Branching process 7337:Telegraph process 7230:Geometric process 7210:Empirical process 7200:Diffusion process 7056:Branching process 7051:Bernoulli process 7001: 7000: 6904:Frullani integral 6874:Gaussian integral 6824:Laplace transform 6799:Inverse functions 6789:Partial fractions 6714:Khinchin integral 6674:Lebesgue integral 6410:978-1-4939-2867-5 6265: 6226: 6167: 6103: 6055: 6035: 6023: 5992: 5702: 4640: 4477: 4384: 3997:square integrable 3814:Local martingales 3664: 3544:, it states that 2868:, if and only if 2822:= 1 / (1 + | 2519: 2503: 2456:be a sequence of 2229: 1520:which holds when 1318: 990: 974: 908:is a sequence of 16:(Redirected from 8319: 8258:Machine learning 8145:Usual hypotheses 8028:Girsanov theorem 8013:Dynkin's formula 7778:Continuous paths 7686:Actuarial models 7626:Garman–Kohlhagen 7596:Black–Karasinski 7591:Black–Derman–Toy 7578:Financial models 7444:Fields and other 7373:Gaussian process 7322:Sigma-martingale 7126:Additive process 7028: 7021: 7014: 7005: 6849:Trapezoidal rule 6834:Laplace's method 6734:Pfeffer integral 6694:Darboux integral 6689:Daniell integral 6684:Bochner integral 6679:Burkill integral 6669:Riemann integral 6646: 6639: 6632: 6623: 6614: 6596: 6578: 6560: 6539: 6528: 6517: 6492: 6471: 6453: 6413: 6399:(2nd ed.), 6391: 6377:(1st ed.), 6376: 6323: 6318: 6317: 6292: 6290: 6289: 6284: 6279: 6278: 6266: 6264: 6263: 6262: 6261: 6247: 6246: 6245: 6229: 6227: 6219: 6214: 6213: 6204: 6203: 6188: 6187: 6175: 6174: 6169: 6168: 6160: 6148:Stratonovich SDE 6143: 6141: 6140: 6135: 6130: 6129: 6117: 6116: 6104: 6102: 6101: 6100: 6087: 6086: 6073: 6069: 6068: 6058: 6056: 6048: 6043: 6042: 6037: 6036: 6028: 6024: 6022: 6021: 6020: 6007: 5999: 5994: 5993: 5985: 5976:has to be used: 5971: 5962: 5960: 5959: 5954: 5949: 5948: 5913: 5911: 5910: 5905: 5900: 5899: 5887: 5886: 5871: 5870: 5849: 5848: 5836: 5835: 5822: 5821: 5809: 5808: 5789: 5787: 5786: 5781: 5779: 5778: 5762: 5760: 5759: 5754: 5749: 5748: 5739: 5738: 5723: 5722: 5710: 5709: 5704: 5703: 5695: 5681:(SDEs), such as 5668: 5650: 5646: 5640: 5630: 5629: 5616: 5614: 5613: 5608: 5606: 5605: 5596: 5590: 5589: 5579: 5574: 5562: 5561: 5549: 5548: 5532: 5524: 5522: 5521: 5516: 5500: 5494: 5486: 5432: 5426: 5405: 5380: 5372: 5370: 5369: 5364: 5359: 5355: 5354: 5353: 5333: 5328: 5318: 5313: 5299: 5291: 5287: 5286: 5285: 5276: 5275: 5252: 5240: 5230: 5229: 5220: 5219: 5210: 5204: 5203: 5182: 5165: 5139: 5133: 5127: 5121: 5115: 5101: 5088: 5082: 5080: 5079: 5074: 5063: 5059: 5051: 5050: 5040: 5035: 5021: 5005: 5003: 5002: 4997: 4992: 4988: 4979: 4974: 4964: 4959: 4945: 4937: 4933: 4932: 4931: 4922: 4921: 4898: 4886: 4868: 4859: 4853: 4843: 4841: 4840: 4835: 4827: 4826: 4814: 4813: 4798: 4797: 4780: 4771: 4770: 4748: 4742: 4733: 4727: 4687: 4679: 4673: 4663: 4661: 4660: 4655: 4647: 4643: 4642: 4641: 4633: 4627: 4626: 4608: 4607: 4590: 4579: 4575: 4574: 4573: 4563: 4558: 4529: 4517: 4511: 4500: 4494: 4492: 4491: 4486: 4484: 4480: 4478: 4470: 4468: 4448: 4437: 4433: 4432: 4431: 4421: 4416: 4399: 4391: 4387: 4385: 4377: 4375: 4355: 4340: 4336: 4330: 4324: 4318: 4312: 4294: 4288: 4281: 4277: 4273: 4267: 4260: 4258: 4231: 4222: 4215: 4211: 4209: 4198: 4192: 4174: 4164: 4152: 4146: 4144: 4143: 4138: 4133: 4129: 4115: 4114: 4104: 4099: 4085: 4077: 4073: 4072: 4071: 4062: 4061: 4038: 4022: 4016: 4012: 4008: 3986: 3972: 3964: 3955: 3945: 3941: 3939: 3938: 3933: 3909: 3908: 3898: 3893: 3877: 3871: 3865: 3859: 3853: 3843: 3833: 3827: 3820:local martingale 3800: 3798: 3797: 3792: 3777: 3775: 3774: 3769: 3764: 3763: 3754: 3753: 3741: 3740: 3721: 3720: 3708: 3707: 3691: 3686: 3665: 3657: 3651: 3646: 3630: 3629: 3617: 3616: 3606: 3601: 3580: 3579: 3554: 3543: 3537: 3531: 3525: 3510: 3473: 3471: 3470: 3465: 3463: 3462: 3438: 3437: 3424: 3423: 3410: 3405: 3393: 3392: 3379: 3378: 3365: 3360: 3348: 3347: 3338: 3337: 3325: 3324: 3315: 3314: 3298: 3292: 3270: 3268: 3267: 3262: 3248: 3247: 3213: 3205: 3199: 3193: 3184: 3180: 3159: 3153: 3147: 3142: 3131: 3111: 3109: 3108: 3103: 3052: 3046: 3040: 3030: 3024: 3018: 3012: 3006: 2992: 2973: 2963: 2947: 2912: 2901: 2895: 2877: 2867: 2853: 2847: 2841: 2835: 2829: 2827: 2816: 2810: 2793: 2791: 2790: 2785: 2769: 2764: 2745: 2744: 2734: 2729: 2713: 2707: 2702: 2691: 2652: 2650: 2649: 2644: 2636: 2635: 2634: 2633: 2610: 2609: 2608: 2607: 2590: 2589: 2588: 2587: 2566: 2565: 2564: 2552: 2551: 2539: 2538: 2517: 2488: 2483: 2467: 2455: 2446: 2436: 2418: 2411:finite variation 2408: 2402:local martingale 2399: 2385: 2364: 2348: 2346: 2345: 2340: 2335: 2334: 2321: 2320: 2308: 2307: 2295: 2294: 2274: 2269: 2257: 2256: 2244: 2243: 2231: 2222: 2209: 2208: 2196: 2195: 2183: 2182: 2170: 2169: 2150: 2148: 2147: 2142: 2137: 2136: 2118: 2117: 2101: 2095: 2082: 2076: 2070: 2068: 2067: 2062: 2045: 2041: 2040: 2029: 2021: 2020: 2011: 2010: 1995: 1990: 1974: 1969:-integrable and 1968: 1962: 1954: 1952: 1951: 1946: 1934: 1933: 1924: 1923: 1913: 1908: 1896: 1895: 1882: 1881: 1872: 1871: 1861: 1856: 1833: 1828: 1812: 1808: 1806: 1805: 1800: 1782: 1777: 1776: 1767: 1758: 1753: 1740: 1735: 1715: 1709: 1701: 1699: 1698: 1693: 1681: 1680: 1670: 1665: 1653: 1652: 1639: 1638: 1628: 1623: 1611: 1610: 1598: 1597: 1565: 1559: 1544: 1525: 1519: 1517: 1516: 1511: 1509: 1505: 1496: 1491: 1481: 1476: 1462: 1454: 1450: 1449: 1444: 1440: 1439: 1438: 1425: 1424: 1414: 1409: 1390: 1375: 1373: 1372: 1367: 1358: 1357: 1347: 1342: 1332: 1303: 1298: 1282: 1280: 1279: 1274: 1259: 1258: 1249: 1248: 1229: 1224: 1201: 1195: 1189: 1184:with respect to 1183: 1177: 1170: 1156: 1129: 1127: 1126: 1121: 1113: 1112: 1111: 1110: 1087: 1086: 1085: 1084: 1067: 1066: 1065: 1064: 1043: 1042: 1041: 1026: 1025: 1013: 1012: 988: 959: 954: 935: 931: 926:with respect to 925: 919: 907: 905: 904: 899: 894: 893: 865:right-continuous 862: 852: 822: 811: 809: 808: 803: 801: 800: 795: 794: 780: 756: 754: 753: 748: 746: 745: 740: 739: 725: 714: 712: 711: 706: 704: 703: 698: 697: 683: 677: 675: 674: 669: 667: 666: 661: 660: 646: 637: 632:, and a process 631: 626: 624: 623: 618: 616: 615: 610: 609: 591: 589: 588: 583: 575: 567: 566: 551: 550: 545: 544: 531: 530: 504: 483: 466: 448: 446: 445: 440: 435: 434: 421: 420: 410: 405: 382: 377: 365: 364: 348: 326: 316: 260: 256: 248: 234: 218: 204: 198: 196: 195: 190: 185: 184: 171: 170: 160: 155: 143: 142: 84: 60: 56: 50: 21: 8327: 8326: 8322: 8321: 8320: 8318: 8317: 8316: 8287: 8286: 8285: 8280: 8262: 8223:Queueing theory 8166: 8108:Skorokhod space 7971: 7962:Kunita–Watanabe 7933: 7899:Sanov's theorem 7869:Ergodic theorem 7842: 7838:Time-reversible 7756: 7719:Queueing models 7713: 7709:Sparre–Anderson 7699:Cramér–Lundberg 7680: 7666:SABR volatility 7572: 7529: 7481:Boolean network 7439: 7425:Renewal process 7356: 7305:Non-homogeneous 7295:Poisson process 7185:Contact process 7148:Brownian motion 7118:Continuous time 7112: 7106:Maximal entropy 7037: 7032: 7002: 6997: 6973:Integration Bee 6946: 6913: 6860: 6856:Risch algorithm 6794:Euler's formula 6754: 6748: 6729:Pettis integral 6661: 6655: 6650: 6620: 6612: 6599: 6594: 6581: 6576: 6563: 6558: 6542: 6537: 6520: 6474: 6469: 6456: 6451: 6438: 6411: 6394: 6389: 6368: 6364: 6359: 6319: 6312: 6309: 6267: 6253: 6248: 6234: 6230: 6205: 6192: 6179: 6157: 6152: 6151: 6118: 6105: 6092: 6078: 6074: 6060: 6059: 6025: 6012: 6008: 6000: 5978: 5977: 5969: 5964: 5940: 5923: 5922: 5891: 5878: 5859: 5840: 5827: 5813: 5800: 5792: 5791: 5770: 5765: 5764: 5740: 5727: 5714: 5692: 5687: 5686: 5675: 5667: 5660: 5652: 5648: 5642: 5636: 5623: 5618: 5597: 5581: 5553: 5540: 5535: 5534: 5526: 5507: 5506: 5496: 5488: 5482: 5479: 5460: 5452: 5428: 5422: 5415: 5401: 5387:Doléans measure 5375: 5345: 5304: 5300: 5277: 5267: 5257: 5253: 5243: 5242: 5236: 5223: 5222: 5213: 5212: 5206: 5197: 5188: 5178: 5170:. The standard 5141: 5135: 5129: 5123: 5117: 5103: 5097: 5084: 5042: 5026: 5022: 5012: 5011: 4950: 4946: 4923: 4913: 4903: 4899: 4889: 4888: 4880: 4874: 4864: 4855: 4845: 4818: 4805: 4775: 4762: 4751: 4750: 4744: 4740: 4735: 4729: 4726: 4707: 4702: 4694: 4688:is integrable. 4681: 4675: 4665: 4628: 4618: 4599: 4595: 4591: 4565: 4534: 4530: 4520: 4519: 4513: 4508: 4502: 4496: 4453: 4449: 4423: 4404: 4400: 4360: 4356: 4343: 4342: 4338: 4332: 4326: 4320: 4314: 4307: 4290: 4283: 4279: 4275: 4269: 4262: 4256: 4251: 4249: 4238: 4233: 4227: 4217: 4213: 4207: 4202: 4200: 4194: 4187: 4184: 4166: 4163: 4154: 4148: 4106: 4090: 4086: 4063: 4053: 4043: 4039: 4029: 4028: 4018: 4014: 4010: 4004: 3993: 3978: 3966: 3960: 3947: 3943: 3900: 3880: 3879: 3873: 3867: 3861: 3855: 3845: 3835: 3829: 3823: 3816: 3811: 3780: 3779: 3755: 3745: 3732: 3712: 3693: 3621: 3608: 3571: 3557: 3556: 3545: 3539: 3533: 3527: 3512: 3508: 3497: 3491: 3454: 3429: 3412: 3384: 3367: 3339: 3329: 3316: 3306: 3301: 3300: 3294: 3288: 3277: 3239: 3216: 3215: 3207: 3201: 3195: 3189: 3182: 3166: 3161: 3155: 3149: 3140: 3135: 3133: 3125: 3120: 3119:. Suppose that 3055: 3054: 3048: 3042: 3032: 3026: 3020: 3014: 3008: 3002: 2975: 2971: 2965: 2962: 2954: 2949: 2945: 2919: 2903: 2897: 2879: 2875: 2869: 2855: 2849: 2843: 2837: 2831: 2823: 2818: 2812: 2802: 2736: 2716: 2715: 2709: 2700: 2695: 2693: 2685: 2680: 2619: 2614: 2599: 2594: 2573: 2568: 2556: 2543: 2524: 2470: 2469: 2461: 2454: 2448: 2438: 2432: 2421:Brownian motion 2414: 2404: 2387: 2381: 2375: 2360: 2326: 2312: 2299: 2286: 2248: 2232: 2200: 2187: 2174: 2161: 2153: 2152: 2128: 2109: 2104: 2103: 2097: 2091: 2078: 2072: 2012: 2002: 2001: 1997: 1977: 1976: 1970: 1964: 1958: 1925: 1915: 1887: 1873: 1863: 1815: 1814: 1810: 1768: 1722: 1721: 1711: 1705: 1672: 1644: 1630: 1602: 1589: 1584: 1583: 1561: 1546: 1539: 1532: 1521: 1467: 1463: 1430: 1416: 1400: 1396: 1395: 1391: 1381: 1380: 1349: 1285: 1284: 1250: 1240: 1211: 1210: 1207: 1197: 1191: 1185: 1179: 1172: 1162: 1158: 1152: 1096: 1091: 1076: 1071: 1050: 1045: 1033: 1017: 998: 941: 940: 938:random variable 933: 927: 921: 913: 885: 877: 876: 858: 848: 839:, that is as a 833: 813: 788: 783: 782: 779: 770: 758: 733: 728: 727: 724: 716: 691: 686: 685: 679: 654: 649: 648: 644: 639: 633: 629: 603: 598: 597: 552: 538: 511: 510: 495: 485: 472: 454: 426: 412: 356: 351: 350: 344: 341: 335:, Chapter IV). 322: 312: 305: 261:and constructs 258: 254: 244: 237:random variable 232: 225:Brownian motion 214: 200: 176: 162: 134: 129: 128: 106:Brownian motion 70: 62: 58: 52: 48: 42: 28: 23: 22: 15: 12: 11: 5: 8325: 8323: 8315: 8314: 8309: 8304: 8299: 8289: 8288: 8282: 8281: 8279: 8278: 8273: 8271:List of topics 8267: 8264: 8263: 8261: 8260: 8255: 8250: 8245: 8240: 8235: 8230: 8228:Renewal theory 8225: 8220: 8215: 8210: 8205: 8200: 8195: 8193:Ergodic theory 8190: 8185: 8183:Control theory 8180: 8174: 8172: 8168: 8167: 8165: 8164: 8163: 8162: 8157: 8147: 8142: 8137: 8132: 8127: 8126: 8125: 8115: 8113:Snell envelope 8110: 8105: 8100: 8095: 8090: 8085: 8080: 8075: 8070: 8065: 8060: 8055: 8050: 8045: 8040: 8035: 8030: 8025: 8020: 8015: 8010: 8005: 8000: 7995: 7990: 7985: 7979: 7977: 7973: 7972: 7970: 7969: 7964: 7959: 7954: 7949: 7943: 7941: 7935: 7934: 7932: 7931: 7912:Borel–Cantelli 7901: 7896: 7891: 7886: 7881: 7876: 7871: 7866: 7861: 7856: 7850: 7848: 7847:Limit theorems 7844: 7843: 7841: 7840: 7835: 7830: 7825: 7820: 7815: 7810: 7805: 7800: 7795: 7790: 7785: 7780: 7775: 7770: 7764: 7762: 7758: 7757: 7755: 7754: 7749: 7744: 7739: 7734: 7729: 7723: 7721: 7715: 7714: 7712: 7711: 7706: 7701: 7696: 7690: 7688: 7682: 7681: 7679: 7678: 7673: 7668: 7663: 7658: 7653: 7648: 7643: 7638: 7633: 7628: 7623: 7618: 7613: 7608: 7603: 7598: 7593: 7588: 7582: 7580: 7574: 7573: 7571: 7570: 7565: 7560: 7555: 7550: 7545: 7539: 7537: 7531: 7530: 7528: 7527: 7522: 7517: 7516: 7515: 7510: 7500: 7495: 7490: 7485: 7484: 7483: 7478: 7468: 7466:Hopfield model 7463: 7458: 7453: 7447: 7445: 7441: 7440: 7438: 7437: 7432: 7427: 7422: 7417: 7412: 7411: 7410: 7405: 7400: 7395: 7385: 7383:Markov process 7380: 7375: 7370: 7364: 7362: 7358: 7357: 7355: 7354: 7352:Wiener sausage 7349: 7347:Wiener process 7344: 7339: 7334: 7329: 7327:Stable process 7324: 7319: 7317:Semimartingale 7314: 7309: 7308: 7307: 7302: 7292: 7287: 7282: 7277: 7272: 7267: 7262: 7260:Jump diffusion 7257: 7252: 7247: 7242: 7237: 7235:Hawkes process 7232: 7227: 7222: 7217: 7215:Feller process 7212: 7207: 7202: 7197: 7192: 7187: 7182: 7180:Cauchy process 7177: 7176: 7175: 7170: 7165: 7160: 7155: 7145: 7144: 7143: 7133: 7131:Bessel process 7128: 7122: 7120: 7114: 7113: 7111: 7110: 7109: 7108: 7103: 7098: 7093: 7083: 7078: 7073: 7068: 7063: 7058: 7053: 7047: 7045: 7039: 7038: 7033: 7031: 7030: 7023: 7016: 7008: 6999: 6998: 6996: 6995: 6994: 6993: 6988: 6980: 6975: 6970: 6968:Gabriel's horn 6965: 6960: 6954: 6952: 6948: 6947: 6945: 6944: 6939: 6934: 6929: 6923: 6921: 6915: 6914: 6912: 6911: 6906: 6901: 6896: 6895: 6894: 6889: 6881: 6876: 6870: 6868: 6862: 6861: 6859: 6858: 6853: 6852: 6851: 6846: 6844:Simpson's rule 6836: 6831: 6826: 6821: 6816: 6811: 6806: 6804:Changing order 6801: 6796: 6791: 6786: 6781: 6780: 6779: 6774: 6769: 6758: 6756: 6750: 6749: 6747: 6746: 6741: 6736: 6731: 6726: 6721: 6716: 6711: 6706: 6701: 6696: 6691: 6686: 6681: 6676: 6671: 6665: 6663: 6657: 6656: 6651: 6649: 6648: 6641: 6634: 6626: 6619: 6618: 6615: 6610: 6597: 6592: 6579: 6574: 6561: 6556: 6540: 6535: 6518: 6472: 6467: 6454: 6450:978-0849377150 6449: 6436: 6417:Hagen Kleinert 6414: 6409: 6392: 6387: 6365: 6363: 6360: 6358: 6357: 6355:Wiener process 6352: 6350:Semimartingale 6347: 6342: 6337: 6332: 6326: 6325: 6324: 6308: 6305: 6282: 6277: 6274: 6270: 6260: 6256: 6251: 6244: 6241: 6237: 6233: 6225: 6222: 6217: 6212: 6208: 6202: 6199: 6195: 6191: 6186: 6182: 6178: 6173: 6166: 6163: 6133: 6128: 6125: 6121: 6115: 6112: 6108: 6099: 6095: 6091: 6085: 6081: 6077: 6072: 6067: 6063: 6054: 6051: 6046: 6041: 6034: 6031: 6019: 6015: 6011: 6006: 6003: 5997: 5991: 5988: 5967: 5952: 5947: 5943: 5939: 5936: 5933: 5930: 5903: 5898: 5894: 5890: 5885: 5881: 5877: 5874: 5869: 5866: 5862: 5858: 5855: 5852: 5847: 5843: 5839: 5834: 5830: 5825: 5820: 5816: 5812: 5807: 5803: 5799: 5777: 5773: 5752: 5747: 5743: 5737: 5734: 5730: 5726: 5721: 5717: 5713: 5708: 5701: 5698: 5674: 5671: 5665: 5656: 5604: 5600: 5595: 5588: 5584: 5578: 5573: 5569: 5565: 5560: 5556: 5552: 5547: 5543: 5514: 5478: 5475: 5459: 5456: 5451: 5448: 5444:Bichteler 2002 5413: 5391:submartingales 5362: 5358: 5352: 5348: 5344: 5341: 5338: 5332: 5327: 5323: 5317: 5312: 5308: 5303: 5298: 5294: 5290: 5284: 5280: 5274: 5270: 5266: 5263: 5260: 5256: 5251: 5205:exists, where 5072: 5069: 5066: 5062: 5058: 5055: 5049: 5045: 5039: 5034: 5030: 5025: 5020: 4995: 4991: 4987: 4984: 4978: 4973: 4969: 4963: 4958: 4954: 4949: 4944: 4940: 4936: 4930: 4926: 4920: 4916: 4912: 4909: 4906: 4902: 4897: 4878: 4833: 4830: 4825: 4821: 4817: 4812: 4808: 4804: 4801: 4796: 4793: 4790: 4787: 4784: 4779: 4774: 4769: 4765: 4761: 4758: 4738: 4716: 4705: 4693: 4690: 4653: 4650: 4646: 4639: 4636: 4631: 4625: 4621: 4617: 4614: 4611: 4606: 4602: 4598: 4594: 4589: 4585: 4582: 4578: 4572: 4568: 4562: 4557: 4553: 4549: 4546: 4543: 4540: 4537: 4533: 4528: 4506: 4483: 4476: 4473: 4467: 4463: 4459: 4456: 4452: 4447: 4443: 4440: 4436: 4430: 4426: 4420: 4415: 4411: 4407: 4403: 4398: 4394: 4390: 4383: 4380: 4374: 4370: 4366: 4363: 4359: 4354: 4350: 4254: 4241: 4236: 4232:is written as 4205: 4183: 4177: 4159: 4136: 4132: 4128: 4125: 4122: 4119: 4113: 4109: 4103: 4098: 4094: 4089: 4084: 4080: 4076: 4070: 4066: 4060: 4056: 4052: 4049: 4046: 4042: 4037: 3992: 3989: 3931: 3928: 3925: 3922: 3919: 3916: 3913: 3907: 3903: 3897: 3892: 3888: 3815: 3812: 3810: 3807: 3790: 3787: 3767: 3762: 3758: 3752: 3748: 3744: 3739: 3735: 3731: 3728: 3724: 3719: 3715: 3711: 3706: 3703: 3700: 3696: 3690: 3685: 3682: 3679: 3676: 3673: 3669: 3663: 3660: 3655: 3650: 3645: 3641: 3637: 3633: 3628: 3624: 3620: 3615: 3611: 3605: 3600: 3597: 3594: 3590: 3586: 3583: 3578: 3574: 3570: 3567: 3564: 3493:Main article: 3490: 3487: 3461: 3457: 3453: 3450: 3447: 3444: 3441: 3436: 3432: 3428: 3422: 3419: 3415: 3409: 3404: 3400: 3396: 3391: 3387: 3383: 3377: 3374: 3370: 3364: 3359: 3355: 3351: 3346: 3342: 3336: 3332: 3328: 3323: 3319: 3313: 3309: 3276: 3273: 3272: 3271: 3260: 3257: 3254: 3251: 3246: 3242: 3238: 3235: 3232: 3229: 3226: 3223: 3186: 3164: 3138: 3123: 3112: 3101: 3098: 3095: 3092: 3089: 3086: 3083: 3080: 3077: 3074: 3071: 3068: 3065: 3062: 2994: 2969: 2960: 2952: 2942: 2939:semimartingale 2918: 2915: 2873: 2783: 2780: 2777: 2773: 2768: 2763: 2759: 2755: 2752: 2749: 2743: 2739: 2733: 2728: 2724: 2698: 2683: 2642: 2639: 2632: 2629: 2626: 2622: 2617: 2613: 2606: 2602: 2597: 2593: 2586: 2583: 2580: 2576: 2571: 2563: 2559: 2555: 2550: 2546: 2542: 2537: 2534: 2531: 2527: 2522: 2516: 2513: 2510: 2506: 2502: 2499: 2496: 2492: 2487: 2482: 2478: 2450: 2429:Lévy processes 2379:semimartingale 2374: 2371: 2338: 2333: 2329: 2325: 2319: 2315: 2311: 2306: 2302: 2298: 2293: 2289: 2285: 2282: 2279: 2273: 2268: 2264: 2260: 2255: 2251: 2247: 2242: 2239: 2235: 2228: 2225: 2219: 2216: 2213: 2207: 2203: 2199: 2194: 2190: 2186: 2181: 2177: 2173: 2168: 2164: 2160: 2140: 2135: 2131: 2127: 2124: 2121: 2116: 2112: 2060: 2057: 2054: 2051: 2048: 2044: 2039: 2035: 2032: 2028: 2024: 2019: 2015: 2009: 2005: 2000: 1994: 1989: 1985: 1944: 1941: 1938: 1932: 1928: 1922: 1918: 1912: 1907: 1903: 1899: 1894: 1890: 1886: 1880: 1876: 1870: 1866: 1860: 1855: 1851: 1847: 1844: 1841: 1837: 1832: 1827: 1823: 1798: 1795: 1792: 1789: 1785: 1781: 1775: 1771: 1766: 1762: 1757: 1752: 1748: 1744: 1739: 1734: 1730: 1691: 1688: 1685: 1679: 1675: 1669: 1664: 1660: 1656: 1651: 1647: 1643: 1637: 1633: 1627: 1622: 1618: 1614: 1609: 1605: 1601: 1596: 1592: 1568:Ricker wavelet 1531: 1528: 1508: 1504: 1501: 1495: 1490: 1486: 1480: 1475: 1471: 1466: 1461: 1457: 1453: 1448: 1443: 1437: 1433: 1429: 1423: 1419: 1413: 1408: 1404: 1399: 1394: 1389: 1365: 1362: 1356: 1352: 1346: 1341: 1337: 1331: 1328: 1325: 1321: 1317: 1314: 1311: 1307: 1302: 1297: 1293: 1272: 1269: 1266: 1263: 1257: 1253: 1247: 1243: 1239: 1236: 1233: 1228: 1223: 1219: 1205: 1196:is said to be 1160: 1119: 1116: 1109: 1106: 1103: 1099: 1094: 1090: 1083: 1079: 1074: 1070: 1063: 1060: 1057: 1053: 1048: 1040: 1036: 1032: 1029: 1024: 1020: 1016: 1011: 1008: 1005: 1001: 997: 993: 987: 984: 981: 977: 973: 970: 967: 963: 958: 953: 949: 897: 892: 888: 884: 855:Wiener process 832: 829: 799: 793: 775: 762: 744: 738: 720: 702: 696: 665: 659: 642: 638:is adapted if 614: 608: 581: 578: 574: 570: 565: 562: 559: 555: 549: 543: 537: 534: 529: 524: 521: 518: 493: 438: 433: 429: 425: 419: 415: 409: 404: 400: 396: 393: 390: 386: 381: 376: 372: 368: 363: 359: 340: 337: 303: 229:semimartingale 188: 183: 179: 175: 169: 165: 159: 154: 150: 146: 141: 137: 110:Wiener process 92:, named after 66: 38: 26: 24: 14: 13: 10: 9: 6: 4: 3: 2: 8324: 8313: 8310: 8308: 8305: 8303: 8300: 8298: 8295: 8294: 8292: 8277: 8274: 8272: 8269: 8268: 8265: 8259: 8256: 8254: 8251: 8249: 8246: 8244: 8241: 8239: 8236: 8234: 8231: 8229: 8226: 8224: 8221: 8219: 8216: 8214: 8211: 8209: 8206: 8204: 8201: 8199: 8196: 8194: 8191: 8189: 8186: 8184: 8181: 8179: 8176: 8175: 8173: 8169: 8161: 8158: 8156: 8153: 8152: 8151: 8148: 8146: 8143: 8141: 8138: 8136: 8133: 8131: 8130:Stopping time 8128: 8124: 8121: 8120: 8119: 8116: 8114: 8111: 8109: 8106: 8104: 8101: 8099: 8096: 8094: 8091: 8089: 8086: 8084: 8081: 8079: 8076: 8074: 8071: 8069: 8066: 8064: 8061: 8059: 8056: 8054: 8051: 8049: 8046: 8044: 8041: 8039: 8036: 8034: 8031: 8029: 8026: 8024: 8021: 8019: 8016: 8014: 8011: 8009: 8006: 8004: 8001: 7999: 7996: 7994: 7991: 7989: 7986: 7984: 7981: 7980: 7978: 7974: 7968: 7965: 7963: 7960: 7958: 7955: 7953: 7950: 7948: 7945: 7944: 7942: 7940: 7936: 7929: 7925: 7921: 7920:Hewitt–Savage 7917: 7913: 7909: 7905: 7904:Zero–one laws 7902: 7900: 7897: 7895: 7892: 7890: 7887: 7885: 7882: 7880: 7877: 7875: 7872: 7870: 7867: 7865: 7862: 7860: 7857: 7855: 7852: 7851: 7849: 7845: 7839: 7836: 7834: 7831: 7829: 7826: 7824: 7821: 7819: 7816: 7814: 7811: 7809: 7806: 7804: 7801: 7799: 7796: 7794: 7791: 7789: 7786: 7784: 7781: 7779: 7776: 7774: 7771: 7769: 7766: 7765: 7763: 7759: 7753: 7750: 7748: 7745: 7743: 7740: 7738: 7735: 7733: 7730: 7728: 7725: 7724: 7722: 7720: 7716: 7710: 7707: 7705: 7702: 7700: 7697: 7695: 7692: 7691: 7689: 7687: 7683: 7677: 7674: 7672: 7669: 7667: 7664: 7662: 7659: 7657: 7654: 7652: 7649: 7647: 7644: 7642: 7639: 7637: 7634: 7632: 7629: 7627: 7624: 7622: 7619: 7617: 7614: 7612: 7609: 7607: 7604: 7602: 7601:Black–Scholes 7599: 7597: 7594: 7592: 7589: 7587: 7584: 7583: 7581: 7579: 7575: 7569: 7566: 7564: 7561: 7559: 7556: 7554: 7551: 7549: 7546: 7544: 7541: 7540: 7538: 7536: 7532: 7526: 7523: 7521: 7518: 7514: 7511: 7509: 7506: 7505: 7504: 7503:Point process 7501: 7499: 7496: 7494: 7491: 7489: 7486: 7482: 7479: 7477: 7474: 7473: 7472: 7469: 7467: 7464: 7462: 7461:Gibbs measure 7459: 7457: 7454: 7452: 7449: 7448: 7446: 7442: 7436: 7433: 7431: 7428: 7426: 7423: 7421: 7418: 7416: 7413: 7409: 7406: 7404: 7401: 7399: 7396: 7394: 7391: 7390: 7389: 7386: 7384: 7381: 7379: 7376: 7374: 7371: 7369: 7366: 7365: 7363: 7359: 7353: 7350: 7348: 7345: 7343: 7340: 7338: 7335: 7333: 7330: 7328: 7325: 7323: 7320: 7318: 7315: 7313: 7310: 7306: 7303: 7301: 7298: 7297: 7296: 7293: 7291: 7288: 7286: 7283: 7281: 7278: 7276: 7273: 7271: 7268: 7266: 7263: 7261: 7258: 7256: 7253: 7251: 7250:Itô diffusion 7248: 7246: 7243: 7241: 7238: 7236: 7233: 7231: 7228: 7226: 7225:Gamma process 7223: 7221: 7218: 7216: 7213: 7211: 7208: 7206: 7203: 7201: 7198: 7196: 7193: 7191: 7188: 7186: 7183: 7181: 7178: 7174: 7171: 7169: 7166: 7164: 7161: 7159: 7156: 7154: 7151: 7150: 7149: 7146: 7142: 7139: 7138: 7137: 7134: 7132: 7129: 7127: 7124: 7123: 7121: 7119: 7115: 7107: 7104: 7102: 7099: 7097: 7096:Self-avoiding 7094: 7092: 7089: 7088: 7087: 7084: 7082: 7081:Moran process 7079: 7077: 7074: 7072: 7069: 7067: 7064: 7062: 7059: 7057: 7054: 7052: 7049: 7048: 7046: 7044: 7043:Discrete time 7040: 7036: 7029: 7024: 7022: 7017: 7015: 7010: 7009: 7006: 6992: 6989: 6987: 6984: 6983: 6981: 6979: 6976: 6974: 6971: 6969: 6966: 6964: 6961: 6959: 6958:Basel problem 6956: 6955: 6953: 6951:Miscellaneous 6949: 6943: 6940: 6938: 6935: 6933: 6930: 6928: 6925: 6924: 6922: 6920: 6916: 6910: 6907: 6905: 6902: 6900: 6897: 6893: 6890: 6888: 6885: 6884: 6882: 6880: 6877: 6875: 6872: 6871: 6869: 6867: 6863: 6857: 6854: 6850: 6847: 6845: 6842: 6841: 6840: 6837: 6835: 6832: 6830: 6827: 6825: 6822: 6820: 6817: 6815: 6812: 6810: 6807: 6805: 6802: 6800: 6797: 6795: 6792: 6790: 6787: 6785: 6782: 6778: 6775: 6773: 6770: 6768: 6767:Trigonometric 6765: 6764: 6763: 6760: 6759: 6757: 6751: 6745: 6742: 6740: 6737: 6735: 6732: 6730: 6727: 6725: 6722: 6720: 6717: 6715: 6712: 6710: 6707: 6705: 6704:Haar integral 6702: 6700: 6697: 6695: 6692: 6690: 6687: 6685: 6682: 6680: 6677: 6675: 6672: 6670: 6667: 6666: 6664: 6658: 6654: 6647: 6642: 6640: 6635: 6633: 6628: 6627: 6624: 6616: 6613: 6611:0-521-77593-0 6607: 6603: 6598: 6595: 6593:3-540-57622-3 6589: 6585: 6580: 6577: 6575:3-540-00313-4 6571: 6567: 6562: 6559: 6557:3-540-04758-1 6553: 6549: 6545: 6541: 6538: 6536:3-540-28328-5 6532: 6527: 6526: 6519: 6516: 6512: 6508: 6504: 6500: 6496: 6491: 6486: 6483:(1): 011123, 6482: 6478: 6473: 6470: 6468:0-387-97655-8 6464: 6460: 6455: 6452: 6446: 6442: 6437: 6434: 6430: 6429:981-238-107-4 6426: 6422: 6418: 6415: 6412: 6406: 6402: 6398: 6393: 6390: 6388:0-521-81129-5 6384: 6380: 6375: 6374: 6367: 6366: 6361: 6356: 6353: 6351: 6348: 6346: 6343: 6341: 6340:Otto calculus 6338: 6336: 6333: 6331: 6328: 6327: 6322: 6316: 6311: 6306: 6304: 6302: 6298: 6297:colored noise 6293: 6280: 6275: 6272: 6268: 6258: 6254: 6242: 6239: 6235: 6223: 6220: 6215: 6210: 6206: 6200: 6197: 6193: 6189: 6184: 6180: 6176: 6171: 6164: 6161: 6149: 6144: 6131: 6126: 6123: 6119: 6113: 6110: 6106: 6097: 6093: 6083: 6079: 6070: 6065: 6052: 6049: 6044: 6039: 6032: 6029: 6017: 6013: 6004: 5995: 5989: 5986: 5975: 5970: 5945: 5941: 5934: 5931: 5928: 5919: 5917: 5896: 5892: 5888: 5883: 5879: 5872: 5867: 5864: 5860: 5856: 5845: 5841: 5832: 5828: 5818: 5814: 5805: 5801: 5775: 5771: 5750: 5745: 5741: 5735: 5732: 5728: 5724: 5719: 5715: 5711: 5706: 5699: 5696: 5684: 5680: 5672: 5670: 5664: 5659: 5655: 5645: 5639: 5634: 5627: 5621: 5602: 5598: 5586: 5582: 5576: 5571: 5567: 5563: 5558: 5554: 5550: 5545: 5541: 5530: 5512: 5504: 5499: 5492: 5485: 5476: 5474: 5472: 5468: 5464: 5457: 5455: 5449: 5447: 5445: 5441: 5437: 5431: 5425: 5420: 5416: 5409: 5404: 5398: 5396: 5392: 5388: 5382: 5378: 5360: 5356: 5350: 5342: 5336: 5330: 5325: 5321: 5315: 5310: 5306: 5301: 5292: 5288: 5282: 5272: 5268: 5264: 5261: 5254: 5239: 5234: 5227: 5217: 5209: 5201: 5195: 5191: 5186: 5181: 5175: 5173: 5169: 5164: 5160: 5156: 5152: 5148: 5144: 5138: 5132: 5126: 5120: 5114: 5110: 5106: 5100: 5094: 5092: 5087: 5070: 5064: 5060: 5056: 5053: 5047: 5043: 5037: 5032: 5028: 5023: 5009: 4993: 4989: 4985: 4982: 4976: 4971: 4967: 4961: 4956: 4952: 4947: 4938: 4934: 4928: 4918: 4914: 4910: 4907: 4900: 4885: 4881: 4872: 4867: 4861: 4858: 4852: 4848: 4831: 4823: 4819: 4815: 4810: 4806: 4799: 4791: 4788: 4785: 4772: 4767: 4763: 4759: 4756: 4747: 4741: 4732: 4724: 4720: 4715: 4712: 4708: 4700: 4691: 4689: 4685: 4678: 4672: 4668: 4648: 4644: 4637: 4634: 4623: 4615: 4609: 4604: 4600: 4592: 4583: 4580: 4576: 4570: 4560: 4555: 4547: 4544: 4541: 4531: 4516: 4509: 4499: 4481: 4474: 4471: 4465: 4457: 4450: 4441: 4438: 4434: 4428: 4418: 4413: 4409: 4401: 4392: 4388: 4381: 4378: 4372: 4364: 4357: 4348: 4335: 4329: 4323: 4317: 4310: 4305: 4300: 4298: 4293: 4286: 4272: 4265: 4257: 4248: 4244: 4239: 4230: 4224: 4220: 4208: 4197: 4190: 4181: 4178: 4176: 4173: 4169: 4162: 4157: 4151: 4134: 4130: 4123: 4117: 4111: 4107: 4101: 4096: 4092: 4087: 4078: 4074: 4068: 4058: 4054: 4050: 4047: 4040: 4026: 4021: 4007: 4002: 3998: 3990: 3988: 3985: 3981: 3976: 3970: 3963: 3957: 3954: 3950: 3929: 3923: 3917: 3911: 3905: 3901: 3895: 3890: 3886: 3876: 3870: 3864: 3858: 3852: 3848: 3842: 3838: 3832: 3826: 3822:property. If 3821: 3813: 3808: 3806: 3804: 3788: 3785: 3765: 3760: 3750: 3746: 3742: 3737: 3733: 3726: 3717: 3713: 3704: 3701: 3698: 3694: 3688: 3683: 3680: 3677: 3674: 3671: 3667: 3661: 3658: 3653: 3648: 3643: 3639: 3635: 3626: 3622: 3613: 3609: 3603: 3598: 3595: 3592: 3588: 3584: 3576: 3572: 3565: 3562: 3552: 3548: 3542: 3536: 3530: 3523: 3519: 3515: 3506: 3502: 3496: 3486: 3484: 3480: 3475: 3459: 3451: 3448: 3445: 3439: 3434: 3430: 3426: 3420: 3417: 3413: 3407: 3402: 3398: 3394: 3389: 3385: 3381: 3375: 3372: 3368: 3362: 3357: 3353: 3349: 3344: 3340: 3334: 3330: 3326: 3321: 3317: 3311: 3307: 3297: 3291: 3286: 3282: 3274: 3255: 3249: 3244: 3240: 3236: 3230: 3227: 3224: 3211: 3204: 3198: 3192: 3187: 3179: 3175: 3171: 3167: 3158: 3152: 3146: 3141: 3130: 3126: 3118: 3117: 3113: 3099: 3096: 3090: 3087: 3081: 3075: 3072: 3069: 3063: 3060: 3051: 3045: 3039: 3035: 3029: 3023: 3017: 3011: 3005: 3000: 2999: 2998:Associativity 2995: 2991: 2987: 2983: 2979: 2972: 2959: 2955: 2943: 2940: 2936: 2932: 2931: 2930: 2928: 2924: 2916: 2914: 2910: 2906: 2900: 2896:. The set of 2894: 2890: 2886: 2882: 2872: 2866: 2862: 2858: 2852: 2846: 2840: 2834: 2826: 2821: 2815: 2809: 2805: 2799: 2797: 2781: 2778: 2775: 2771: 2766: 2761: 2757: 2750: 2747: 2741: 2737: 2731: 2726: 2722: 2712: 2706: 2701: 2690: 2686: 2678: 2673: 2671: 2667: 2663: 2659: 2653: 2640: 2630: 2627: 2624: 2620: 2615: 2611: 2604: 2600: 2595: 2584: 2581: 2578: 2574: 2569: 2561: 2557: 2553: 2548: 2544: 2540: 2535: 2532: 2529: 2525: 2520: 2508: 2500: 2497: 2494: 2490: 2485: 2480: 2476: 2465: 2459: 2453: 2445: 2441: 2437:the integral 2435: 2430: 2426: 2423:, which is a 2422: 2417: 2413:process  2412: 2407: 2403: 2398: 2394: 2390: 2384: 2380: 2372: 2370: 2368: 2363: 2358: 2354: 2349: 2336: 2331: 2327: 2323: 2317: 2313: 2304: 2300: 2287: 2283: 2280: 2277: 2271: 2266: 2262: 2253: 2249: 2233: 2226: 2223: 2217: 2214: 2211: 2205: 2201: 2192: 2188: 2175: 2171: 2166: 2162: 2158: 2133: 2129: 2122: 2119: 2114: 2110: 2100: 2094: 2089: 2084: 2083:-integrable. 2081: 2075: 2058: 2052: 2049: 2046: 2042: 2033: 2030: 2022: 2017: 2013: 2007: 2003: 1998: 1992: 1987: 1983: 1973: 1967: 1961: 1955: 1942: 1939: 1936: 1930: 1926: 1920: 1916: 1910: 1905: 1901: 1897: 1892: 1888: 1884: 1878: 1874: 1868: 1864: 1858: 1853: 1849: 1845: 1842: 1839: 1835: 1830: 1825: 1821: 1793: 1790: 1787: 1773: 1769: 1760: 1755: 1750: 1746: 1737: 1732: 1728: 1719: 1714: 1708: 1702: 1689: 1686: 1683: 1677: 1673: 1667: 1662: 1658: 1654: 1649: 1645: 1641: 1635: 1631: 1625: 1620: 1616: 1612: 1607: 1603: 1599: 1594: 1590: 1581: 1577: 1569: 1564: 1557: 1553: 1549: 1542: 1536: 1530:Itô processes 1529: 1527: 1524: 1506: 1502: 1499: 1493: 1488: 1484: 1478: 1473: 1469: 1464: 1455: 1451: 1446: 1441: 1435: 1431: 1427: 1421: 1417: 1411: 1406: 1402: 1397: 1392: 1379: 1363: 1360: 1354: 1350: 1344: 1339: 1335: 1323: 1315: 1312: 1309: 1305: 1300: 1295: 1291: 1270: 1264: 1261: 1255: 1245: 1241: 1237: 1234: 1226: 1221: 1217: 1208: 1200: 1194: 1188: 1182: 1175: 1168: 1165: 1155: 1150: 1146: 1142: 1137: 1135: 1130: 1117: 1107: 1104: 1101: 1097: 1092: 1088: 1081: 1077: 1072: 1061: 1058: 1055: 1051: 1046: 1038: 1034: 1030: 1022: 1018: 1014: 1009: 1006: 1003: 999: 991: 979: 971: 968: 965: 961: 956: 951: 947: 939: 930: 924: 917: 911: 890: 886: 874: 870: 866: 861: 856: 851: 846: 842: 838: 830: 828: 826: 820: 816: 797: 778: 774: 769: 765: 761: 742: 723: 719: 700: 682: 663: 645: 636: 627: 612: 595: 579: 568: 563: 560: 557: 547: 532: 522: 508: 503: 499: 492: 488: 482: 479: 475: 470: 465: 461: 457: 452: 436: 431: 427: 423: 417: 413: 407: 402: 398: 394: 391: 388: 384: 379: 374: 370: 366: 361: 357: 347: 338: 336: 334: 330: 325: 320: 315: 310: 306: 299: 298:Black–Scholes 295: 291: 286: 284: 280: 277:, which is a 276: 271: 268: 264: 252: 247: 242: 238: 230: 226: 222: 217: 213:generated by 212: 208: 203: 186: 181: 177: 173: 167: 163: 157: 152: 148: 144: 139: 135: 126: 121: 119: 115: 111: 107: 103: 99: 95: 91: 82: 78: 74: 69: 65: 55: 46: 41: 37: 34:Itô integral 32: 19: 8188:Econometrics 8150:Wiener space 8038:Itô integral 7939:Inequalities 7828:Self-similar 7798:Gauss–Markov 7788:Exchangeable 7768:Càdlàg paths 7704:Risk process 7656:LIBOR market 7525:Random graph 7520:Random field 7332:Superprocess 7270:Lévy process 7265:Jump process 7240:Hunt process 7076:Markov chain 6927:Itô integral 6926: 6762:Substitution 6753:Integration 6601: 6583: 6565: 6547: 6529:, Springer, 6524: 6480: 6477:Phys. Rev. E 6476: 6458: 6440: 6420: 6396: 6372: 6294: 6150:which reads 6145: 5965: 5920: 5676: 5662: 5657: 5653: 5643: 5637: 5625: 5619: 5528: 5497: 5490: 5483: 5480: 5471:Nualart 2006 5467:Wiener space 5461: 5453: 5436:Protter 2004 5429: 5423: 5418: 5411: 5407: 5402: 5399: 5383: 5376: 5237: 5232: 5225: 5215: 5207: 5199: 5193: 5189: 5179: 5176: 5167: 5162: 5158: 5154: 5150: 5146: 5142: 5136: 5130: 5124: 5118: 5112: 5108: 5104: 5098: 5095: 5091:localization 5085: 4883: 4876: 4865: 4862: 4856: 4850: 4846: 4745: 4736: 4730: 4722: 4718: 4713: 4710: 4703: 4698: 4695: 4683: 4676: 4670: 4666: 4514: 4504: 4497: 4333: 4327: 4321: 4315: 4308: 4303: 4301: 4291: 4284: 4270: 4263: 4252: 4246: 4242: 4234: 4228: 4225: 4218: 4203: 4195: 4188: 4185: 4179: 4171: 4167: 4160: 4155: 4149: 4027:states that 4025:Itô isometry 4024: 4019: 4005: 4003:martingales 3996: 3994: 3983: 3979: 3968: 3961: 3958: 3952: 3948: 3874: 3868: 3862: 3856: 3850: 3846: 3840: 3836: 3830: 3824: 3817: 3550: 3546: 3540: 3534: 3528: 3521: 3517: 3513: 3498: 3476: 3295: 3289: 3278: 3209: 3202: 3196: 3190: 3177: 3173: 3169: 3162: 3156: 3150: 3144: 3136: 3128: 3121: 3114: 3049: 3043: 3037: 3033: 3027: 3021: 3015: 3009: 3003: 2996: 2989: 2985: 2981: 2977: 2967: 2957: 2950: 2920: 2908: 2904: 2898: 2892: 2888: 2884: 2880: 2870: 2864: 2860: 2856: 2850: 2844: 2838: 2832: 2824: 2819: 2813: 2807: 2803: 2800: 2710: 2704: 2696: 2688: 2681: 2674: 2654: 2463: 2451: 2443: 2439: 2433: 2415: 2405: 2396: 2392: 2388: 2382: 2376: 2361: 2355:formula and 2350: 2098: 2092: 2085: 2079: 2073: 1971: 1965: 1959: 1956: 1712: 1706: 1703: 1575: 1573: 1562: 1555: 1551: 1547: 1540: 1522: 1378:Itô isometry 1203: 1198: 1192: 1186: 1180: 1173: 1166: 1163: 1153: 1138: 1131: 928: 922: 915: 859: 849: 845:Riemann sums 834: 818: 814: 776: 772: 767: 763: 759: 721: 717: 680: 640: 634: 596: 501: 497: 490: 486: 480: 477: 473: 463: 459: 455: 450: 345: 343:The process 342: 329:Riemann sums 323: 319:clairvoyance 313: 308: 301: 287: 272: 263:Riemann sums 245: 215: 201: 122: 90:Itô calculus 89: 88: 80: 76: 72: 67: 63: 53: 44: 39: 35: 18:Itô integral 8233:Ruin theory 8171:Disciplines 8043:Itô's lemma 7818:Predictable 7493:Percolation 7476:Potts model 7471:Ising model 7435:White noise 7393:Differences 7255:Itô process 7195:Cox process 7091:Loop-erased 7086:Random walk 6777:Weierstrass 6401:Birkhaueser 6335:Itô's lemma 5974:Itô's lemma 5438:). Also, a 3965:is that if 3803:Itô's lemma 3495:Itô's lemma 3489:Itô's lemma 2670:local times 2088:Itô's lemma 2077:are called 1576:Itô process 1145:local times 932:up to time 275:Itô's lemma 8291:Categories 8243:Statistics 8023:Filtration 7924:Kolmogorov 7908:Blumenthal 7833:Stationary 7773:Continuous 7761:Properties 7646:Hull–White 7388:Martingale 7275:Local time 7163:Fractional 7141:pure birth 6892:incomplete 6755:techniques 6362:References 5651:to obtain 5533:such that 4341:such that 4331:, but not 4274:such that 4261:. For any 4153:such that 4009:such that 3501:chain rule 2917:Properties 2458:partitions 2425:martingale 2357:chain rule 1171:for every 910:partitions 211:filtration 94:Kiyosi Itô 8155:Classical 7168:Geometric 7158:Excursion 6662:integrals 6660:Types of 6653:Integrals 6490:0707.2234 6433:PDF-files 6250:∂ 6232:∂ 6216:− 6207:ξ 6165:˙ 6090:∂ 6076:∂ 6062:∂ 6033:˙ 6010:∂ 6002:∂ 5990:˙ 5918:is used. 5889:− 5873:δ 5861:δ 5854:⟩ 5829:ξ 5802:ξ 5798:⟨ 5772:ξ 5742:ξ 5700:˙ 5583:α 5568:∫ 5513:α 5347:⟩ 5340:⟨ 5307:∫ 5265:⋅ 5068:∞ 5029:∫ 4953:∫ 4911:⋅ 4816:− 4773:≡ 4760:⋅ 4652:∞ 4610:⋅ 4581:≤ 4561:∗ 4545:⋅ 4439:≤ 4419:∗ 4393:≤ 4093:∫ 4051:⋅ 3942:for each 3927:∞ 3887:∫ 3668:∑ 3589:∑ 3421:− 3399:∫ 3376:− 3354:∫ 3250:⋅ 3228:⋅ 3143:| ≤ 3097:⋅ 3073:⋅ 3064:⋅ 2758:∫ 2754:→ 2723:∫ 2703:| ≤ 2628:− 2612:− 2582:− 2558:π 2554:∈ 2533:− 2521:∑ 2515:∞ 2512:→ 2477:∫ 2314:σ 2292:′ 2263:σ 2241:′ 2238:′ 2202:μ 2180:′ 2056:∞ 2034:μ 2014:σ 1984:∫ 1927:μ 1902:∫ 1875:σ 1850:∫ 1822:∫ 1809:for each 1797:∞ 1770:μ 1747:σ 1729:∫ 1674:μ 1659:∫ 1632:σ 1617:∫ 1470:∫ 1403:∫ 1336:∫ 1330:∞ 1327:→ 1292:∫ 1268:→ 1238:− 1218:∫ 1105:− 1089:− 1059:− 1035:π 1031:∈ 1007:− 992:∑ 986:∞ 983:→ 948:∫ 887:π 594:σ-algebra 561:≥ 520:Ω 509:is given 399:∫ 395:≡ 371:∫ 241:variation 149:∫ 8276:Category 8160:Abstract 7694:Bühlmann 7300:Compound 6982:Volumes 6887:complete 6784:By parts 6546:(2003), 6515:17677426 6419:(2004). 6307:See also 5624:[0, 5527:[0, 5489:[0, 5417:: | 5228:⟩ 5224:⟨ 5218:⟩ 5214:⟨ 5202:⟩ 5198:⟨ 4201:E(| 4186:For any 3148:, where 2462:[0, 1718:Lebesgue 1560:, where 914:[0, 812:for all 339:Notation 104:such as 98:calculus 7783:Ergodic 7671:Vašíček 7513:Poisson 7173:Meander 6986:Washers 6495:Bibcode 5972:, then 5503:adapted 4319:,  4210:|) 2925:) and ( 2828:|) 2714:, then 1580:adapted 1566:is the 873:adapted 285:terms. 251:adapted 209:to the 207:adapted 8123:Tanaka 7808:Mixing 7803:Markov 7676:Wilkie 7641:Ho–Lee 7636:Heston 7408:Super- 7153:Bridge 7101:Biased 6991:Shells 6608:  6590:  6572:  6554:  6533:  6513:  6465:  6447:  6427:  6407:  6385:  5763:where 5379:< ∞ 4337:or on 4287:> 1 4259:| 4250:| 4191:> 1 4001:càdlàg 3946:, and 3485:term. 3154:is an 3134:| 3001:. Let 2935:càdlàg 2694:| 2427:, and 2400:for a 1704:Here, 1169:< ∞ 869:càdlàg 199:where 7976:Tools 7752:M/M/c 7747:M/M/1 7742:M/G/1 7732:Fluid 7398:Local 6772:Euler 6485:arXiv 5628:] 5531:] 5493:] 5006:By a 4721:> 4674:is a 4282:. If 4240:= sup 3977:then 3532:from 3520:,..., 2830:then 2466:] 936:is a 918:] 863:is a 853:is a 296:(see 235:is a 108:(see 75:) = ( 7928:Lévy 7727:Bulk 7611:Chen 7403:Sub- 7361:Both 6606:ISBN 6588:ISBN 6570:ISBN 6552:ISBN 6531:ISBN 6511:PMID 6463:ISBN 6445:ISBN 6425:ISBN 6405:ISBN 6383:ISBN 5914:and 5389:for 5134:and 5065:< 4882:) = 4875:Var( 4789:> 4734:and 4649:< 4302:The 3924:< 3293:and 3194:and 3132:and 2984:) = 2891:) · 2878:and 2836:and 2692:and 2668:and 2409:and 2053:< 1794:< 1545:and 1143:and 592:The 267:mesh 116:and 49:blue 7508:Cox 6503:doi 6303:). 5921:If 5525:on 5473:). 5446:). 5235:of 4854:in 4686:· ) 4311:≥ 1 4266:≥ 1 4221:= 1 3973:is 3971:· ) 3872:is 3805:). 3538:to 3516:= ( 3503:or 3047:is 3031:is 3019:be 2948:is 2929:): 2887:= ( 2876:= 0 2848:is 2505:lim 2460:of 1963:be 1574:An 1558:−5) 1543:= 0 1320:lim 1176:≥ 0 976:lim 912:of 871:), 843:of 827:). 821:≥ 0 726:is 647:is 288:In 249:is 100:to 83:)/2 59:red 47:) ( 8293:: 7926:, 7922:, 7918:, 7914:, 7910:, 6509:, 6501:, 6493:, 6481:76 6479:, 6403:, 6381:, 5661:− 5622:∈ 5410:· 5196:+ 5192:= 5161:· 5157:+ 5153:· 5149:= 5145:· 5111:+ 5107:= 4860:. 4849:· 4709:= 4669:· 4505:M* 4299:. 4235:M* 4170:· 4158:· 3982:· 3951:· 3849:· 3839:· 3212:· 3208:= 3176:· 3172:→ 3168:· 3127:→ 3044:JK 3036:· 3007:, 2980:· 2976:Δ( 2961:t− 2956:− 2913:. 2889:KH 2883:· 2863:= 2859:· 2839:KH 2806:· 2798:. 2687:→ 2672:. 2442:· 2395:+ 2391:= 2369:. 1972:Hμ 1960:Hσ 1550:= 1167:ds 1136:. 771:− 500:· 496:= 489:− 481:dX 476:= 474:dY 462:· 458:= 120:. 79:− 7930:) 7906:( 7027:e 7020:t 7013:v 6645:e 6638:t 6631:v 6505:: 6497:: 6487:: 6281:. 6276:l 6273:m 6269:g 6259:m 6255:x 6243:l 6240:k 6236:g 6224:2 6221:1 6211:l 6201:l 6198:k 6194:g 6190:+ 6185:k 6181:h 6177:= 6172:k 6162:x 6132:. 6127:l 6124:m 6120:g 6114:m 6111:k 6107:g 6098:l 6094:x 6084:k 6080:x 6071:y 6066:2 6053:2 6050:1 6045:+ 6040:j 6030:x 6018:j 6014:x 6005:y 5996:= 5987:y 5968:k 5966:x 5951:) 5946:k 5942:x 5938:( 5935:y 5932:= 5929:y 5902:) 5897:2 5893:t 5884:1 5880:t 5876:( 5868:l 5865:k 5857:= 5851:) 5846:2 5842:t 5838:( 5833:l 5824:) 5819:1 5815:t 5811:( 5806:k 5776:j 5751:, 5746:l 5736:l 5733:k 5729:g 5725:+ 5720:k 5716:h 5712:= 5707:k 5697:x 5666:0 5663:M 5658:t 5654:M 5649:t 5644:B 5638:M 5631:( 5626:T 5620:t 5603:s 5599:B 5594:d 5587:s 5577:t 5572:0 5564:+ 5559:0 5555:M 5551:= 5546:t 5542:M 5529:T 5498:B 5491:T 5484:M 5434:( 5430:X 5424:t 5419:H 5414:t 5412:X 5408:H 5403:X 5377:E 5361:, 5357:] 5351:s 5343:M 5337:d 5331:2 5326:s 5322:H 5316:t 5311:0 5302:[ 5297:E 5293:= 5289:] 5283:2 5279:) 5273:t 5269:M 5262:H 5259:( 5255:[ 5250:E 5238:M 5226:M 5216:M 5208:N 5200:M 5194:N 5190:M 5180:M 5168:X 5163:A 5159:H 5155:M 5151:H 5147:X 5143:H 5137:A 5131:M 5125:A 5119:M 5113:A 5109:M 5105:X 5099:X 5086:B 5071:, 5061:] 5057:s 5054:d 5048:2 5044:H 5038:t 5033:0 5024:[ 5019:E 4994:. 4990:] 4986:s 4983:d 4977:2 4972:s 4968:H 4962:t 4957:0 4948:[ 4943:E 4939:= 4935:] 4929:2 4925:) 4919:t 4915:B 4908:H 4905:( 4901:[ 4896:E 4884:t 4879:t 4877:B 4866:B 4857:H 4851:X 4847:H 4832:. 4829:) 4824:T 4820:X 4811:t 4807:X 4803:( 4800:A 4795:} 4792:T 4786:t 4783:{ 4778:1 4768:t 4764:X 4757:H 4746:A 4739:T 4737:F 4731:T 4725:} 4723:T 4719:t 4717:{ 4714:1 4711:A 4706:t 4704:H 4684:H 4682:( 4677:p 4671:M 4667:H 4645:] 4638:2 4635:p 4630:) 4624:t 4620:] 4616:M 4613:[ 4605:2 4601:H 4597:( 4593:[ 4588:E 4584:C 4577:] 4571:p 4567:) 4556:t 4552:) 4548:M 4542:H 4539:( 4536:( 4532:[ 4527:E 4515:H 4510:) 4507:t 4503:( 4498:M 4482:] 4475:2 4472:p 4466:t 4462:] 4458:M 4455:[ 4451:[ 4446:E 4442:C 4435:] 4429:p 4425:) 4414:t 4410:M 4406:( 4402:[ 4397:E 4389:] 4382:2 4379:p 4373:t 4369:] 4365:M 4362:[ 4358:[ 4353:E 4349:c 4339:t 4334:M 4328:p 4322:C 4316:c 4309:p 4292:p 4285:p 4280:t 4276:E 4271:M 4264:p 4255:s 4253:M 4247:t 4245:≤ 4243:s 4237:t 4229:M 4219:p 4214:t 4206:t 4204:M 4196:p 4189:p 4180:p 4172:M 4168:H 4161:t 4156:H 4150:M 4135:. 4131:] 4127:] 4124:M 4121:[ 4118:d 4112:2 4108:H 4102:t 4097:0 4088:[ 4083:E 4079:= 4075:] 4069:2 4065:) 4059:t 4055:M 4048:H 4045:( 4041:[ 4036:E 4020:M 4015:t 4011:E 4006:M 3984:M 3980:H 3969:H 3967:( 3962:M 3953:M 3949:H 3944:t 3930:, 3921:] 3918:M 3915:[ 3912:d 3906:2 3902:H 3896:t 3891:0 3875:M 3869:H 3863:M 3857:M 3851:M 3847:H 3841:M 3837:H 3831:H 3825:M 3789:, 3786:f 3766:. 3761:t 3757:] 3751:j 3747:X 3743:, 3738:i 3734:X 3730:[ 3727:d 3723:) 3718:t 3714:X 3710:( 3705:j 3702:, 3699:i 3695:f 3689:n 3684:1 3681:= 3678:j 3675:, 3672:i 3662:2 3659:1 3654:+ 3649:i 3644:t 3640:X 3636:d 3632:) 3627:t 3623:X 3619:( 3614:i 3610:f 3604:n 3599:1 3596:= 3593:i 3585:= 3582:) 3577:t 3573:X 3569:( 3566:f 3563:d 3553:) 3551:X 3549:( 3547:f 3541:R 3535:R 3529:f 3524:) 3522:X 3518:X 3514:X 3509:n 3460:t 3456:] 3452:Y 3449:, 3446:X 3443:[ 3440:+ 3435:s 3431:X 3427:d 3418:s 3414:Y 3408:t 3403:0 3395:+ 3390:s 3386:Y 3382:d 3373:s 3369:X 3363:t 3358:0 3350:+ 3345:0 3341:Y 3335:0 3331:X 3327:= 3322:t 3318:Y 3312:t 3308:X 3296:Y 3290:X 3259:] 3256:X 3253:[ 3245:2 3241:H 3237:= 3234:] 3231:X 3225:H 3222:[ 3210:H 3203:X 3197:Y 3191:X 3183:t 3178:X 3174:H 3170:X 3165:n 3163:H 3157:X 3151:J 3145:J 3139:n 3137:H 3129:H 3124:n 3122:H 3100:X 3094:) 3091:K 3088:J 3085:( 3082:= 3079:) 3076:X 3070:K 3067:( 3061:J 3050:X 3038:X 3034:K 3028:J 3022:X 3016:K 3010:K 3004:J 2990:X 2988:Δ 2986:H 2982:X 2978:H 2970:t 2968:X 2966:Δ 2958:X 2953:t 2951:X 2946:t 2941:. 2911:) 2909:X 2907:( 2905:L 2899:X 2893:X 2885:Y 2881:K 2874:0 2871:Y 2865:Y 2861:X 2857:H 2851:X 2845:H 2833:K 2825:H 2820:K 2814:H 2808:X 2804:H 2782:, 2779:X 2776:d 2772:H 2767:t 2762:0 2751:X 2748:d 2742:n 2738:H 2732:t 2727:0 2711:J 2705:J 2699:n 2697:H 2689:H 2684:n 2682:H 2641:. 2638:) 2631:1 2625:i 2621:t 2616:X 2605:i 2601:t 2596:X 2592:( 2585:1 2579:i 2575:t 2570:H 2562:n 2549:i 2545:t 2541:, 2536:1 2530:i 2526:t 2509:n 2501:= 2498:X 2495:d 2491:H 2486:t 2481:0 2464:t 2452:n 2449:π 2444:X 2440:H 2434:H 2416:A 2406:M 2397:A 2393:M 2389:X 2383:X 2362:f 2337:. 2332:t 2328:B 2324:d 2318:t 2310:) 2305:t 2301:X 2297:( 2288:f 2284:+ 2281:t 2278:d 2272:2 2267:t 2259:) 2254:t 2250:X 2246:( 2234:f 2227:2 2224:1 2218:+ 2215:t 2212:d 2206:t 2198:) 2193:t 2189:X 2185:( 2176:f 2172:= 2167:t 2163:Y 2159:d 2139:) 2134:t 2130:X 2126:( 2123:f 2120:= 2115:t 2111:Y 2099:X 2093:f 2080:X 2074:H 2059:. 2050:s 2047:d 2043:) 2038:| 2031:H 2027:| 2023:+ 2018:2 2008:2 2004:H 1999:( 1993:t 1988:0 1966:B 1943:. 1940:s 1937:d 1931:s 1921:s 1917:H 1911:t 1906:0 1898:+ 1893:s 1889:B 1885:d 1879:s 1869:s 1865:H 1859:t 1854:0 1846:= 1843:X 1840:d 1836:H 1831:t 1826:0 1811:t 1791:s 1788:d 1784:) 1780:| 1774:s 1765:| 1761:+ 1756:2 1751:s 1743:( 1738:t 1733:0 1713:B 1707:B 1690:. 1687:s 1684:d 1678:s 1668:t 1663:0 1655:+ 1650:s 1646:B 1642:d 1636:s 1626:t 1621:0 1613:+ 1608:0 1604:X 1600:= 1595:t 1591:X 1563:ψ 1556:t 1554:( 1552:ψ 1548:σ 1541:μ 1523:H 1507:] 1503:s 1500:d 1494:2 1489:s 1485:H 1479:t 1474:0 1465:[ 1460:E 1456:= 1452:] 1447:2 1442:) 1436:s 1432:B 1428:d 1422:s 1418:H 1412:t 1407:0 1398:( 1393:[ 1388:E 1364:B 1361:d 1355:n 1351:H 1345:t 1340:0 1324:n 1316:= 1313:B 1310:d 1306:H 1301:t 1296:0 1271:0 1265:s 1262:d 1256:2 1252:) 1246:n 1242:H 1235:H 1232:( 1227:t 1222:0 1206:n 1204:H 1199:B 1193:H 1187:B 1181:H 1174:t 1164:H 1161:0 1159:∫ 1154:H 1118:. 1115:) 1108:1 1102:i 1098:t 1093:B 1082:i 1078:t 1073:B 1069:( 1062:1 1056:i 1052:t 1047:H 1039:n 1028:] 1023:i 1019:t 1015:, 1010:1 1004:i 1000:t 996:[ 980:n 972:= 969:B 966:d 962:H 957:t 952:0 934:t 929:B 923:H 916:t 896:} 891:n 883:{ 867:( 860:H 850:B 823:( 819:t 817:, 815:s 798:t 792:F 777:t 773:B 768:s 766:+ 764:t 760:B 743:t 737:F 722:t 718:B 701:t 695:F 681:B 664:t 658:F 643:t 641:X 635:X 630:t 613:t 607:F 580:. 577:) 573:P 569:, 564:0 558:t 554:) 548:t 542:F 536:( 533:, 528:F 523:, 517:( 502:X 498:H 494:0 491:Y 487:Y 478:H 467:( 464:X 460:H 456:Y 451:t 437:, 432:s 428:X 424:d 418:s 414:H 408:t 403:0 392:X 389:d 385:H 380:t 375:0 367:= 362:t 358:Y 346:Y 331:( 324:H 314:H 309:t 304:t 302:H 259:t 255:t 246:H 233:t 219:( 216:X 202:H 187:, 182:s 178:X 174:d 168:s 164:H 158:t 153:0 145:= 140:t 136:Y 85:. 81:t 77:B 73:B 71:( 68:t 64:Y 57:( 54:B 45:B 43:( 40:t 36:Y 20:)

Index

Itô integral

Kiyosi Itô
calculus
stochastic processes
Brownian motion
Wiener process
mathematical finance
stochastic differential equations
Riemann–Stieltjes integral
adapted
filtration
Revuz & Yor 1999
Brownian motion
semimartingale
random variable
variation
adapted
Riemann sums
mesh
Itô's lemma
change of variables
quadratic variation
mathematical finance
geometric Brownian motion
Black–Scholes
clairvoyance
Riemann sums
Revuz & Yor 1999
Rogers & Williams 2000

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