• Title/Summary/Keyword: Yeh-Wiener integral

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MODIFIED CONDITIONAL YEH-WIENER INTEGRAL WITH VECTOR-VALUED CONDITIONING FUNCTION

  • Chang, Joo-Sup
    • Journal of the Korean Mathematical Society
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    • v.38 no.1
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    • pp.49-59
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    • 2001
  • In this paper we introduce the modified conditional Yeh-Wiener integral. To do so, we first treat the modified Yeh-Wiener integral. And then we obtain the simple formula for the modified conditional Yeh-Wiener integral and valuate the modified conditional Yeh-Wiener integral for certain functional using the simple formula obtained. Here we consider the functional using the simple formula obtained. Here we consider the functional on a set of continuous functions which are defined on various regions, for example, triangular, parabolic and circular regions.

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A NOTE ON THE MODIFIED CONDITIONAL YEH-WIENER INTEGRAL

  • Chang, Joo-Sup;Ahn, Joong-Hyun
    • Communications of the Korean Mathematical Society
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    • v.16 no.4
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    • pp.627-635
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    • 2001
  • In this paper, we first introduce the modified Yeh-Wiener integral and then consider the modified conditional Yeh-Wiener integral. Here we use the space of continuous functions on a different region which was discussed before. We also evaluate some modified conditional Yeh-Wiener integral with examples using the simple formula for the modified conditional Yeh-Wiener integral.

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BOUNDARY-VALUED CONDITIONAL YEH-WIENER INTEGRALS AND A KAC-FEYNMAN WIENER INTEGRAL EQUATION

  • Park, Chull;David Skoug
    • Journal of the Korean Mathematical Society
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    • v.33 no.4
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    • pp.763-775
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    • 1996
  • For $Q = [0,S] \times [0,T]$ let C(Q) denote Yeh-Wiener space, i.e., the space of all real-valued continuous functions x(s,t) on Q such that x(0,t) = x(s,0) = 0 for every (s,t) in Q. Yeh [10] defined a Gaussian measure $m_y$ on C(Q) (later modified in [13]) such that as a stochastic process ${x(s,t), (s,t) \epsilon Q}$ has mean $E[x(s,t)] = \smallint_{C(Q)} x(s,t)m_y(dx) = 0$ and covariance $E[x(s,t)x(u,\upsilon)] = min{s,u} min{t,\upsilon}$. Let $C_\omega \equiv C[0,T]$ denote the standard Wiener space on [0,T] with Wiener measure $m_\omega$. Yeh [12] introduced the concept of the conditional Wiener integral of F given X, E(F$\mid$X), and for case X(x) = x(T) obtained some very useful results including a Kac-Feynman integral equation.

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A NOTE ON THE SAMPLE PATH-VALUED CONDITIONAL YEH-WIENER INTEGRAL

  • Chang, Joo-Sub;Ahn, Joong-Hyun
    • Communications of the Korean Mathematical Society
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    • v.13 no.4
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    • pp.811-815
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    • 1998
  • In this paper we define a sample path-valued conditional Yeh-Wiener integral for function F of the type E[F(x)$\mid$x(*,(equation omitted))=$\psi({\blacktriangle})]$, where $\psi$ is in C[0, (equation omitted)] and ${\blacktriangle}$ = (equation omitted) and evaluate a sample path-valued conditional Yeh-Wiener integral using the result obtained.

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함수 공간 적분에 관한 소고(II)

  • 장주섭
    • Journal for History of Mathematics
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    • v.13 no.2
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    • pp.65-72
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    • 2000
  • In this paper we treat the Yeh-Wiener integral and the conditional Yeh-Wiener integral for vector-valued conditioning function which are examples of the function space integrals. Finally, we state the modified conditional Yeh-Wiener integral for vector-valued conditioning function.

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EVALUATION FORMULAS OF CONDITIONAL YEH-WIENER INTEGRALS

  • Ahn, J.M.;Chang, K.S.;Kim, S.K.;Yoo, I.
    • Bulletin of the Korean Mathematical Society
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    • v.36 no.4
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    • pp.809-822
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    • 1999
  • In this paper, we introduce conditional Yeh-Wiener in-tegrals for generalized conditioning functions including vector-valued functions. And also we establish various evaluation formulas of conditional Yeh-Wiener integrals for generalized conditioning functions.

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CONDITIONAL ABSTRACT WIENER INTEGRALS OF CYLINDER FUNCTIONS

  • Chang, Seung-Jun;Chung, Dong-Myung
    • Bulletin of the Korean Mathematical Society
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    • v.36 no.3
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    • pp.419-439
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    • 1999
  • In this paper, we first develop a general formula for evaluating conditional abstract Wiener integrals of cylinder functions. we next use our formula to evaluate the conditional abstract wiener integral of various cylinder functions and then specialize our results to conditional Yeh-Wiener integrals to show that we can obtain the corresponding results by Park and Skoug. We finally obtain a Cameron-Martin translation theorem for conditional abstract Wiener integrals.

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