Convergence of stochastic integrals to a continuous local martingale with conditionally independent increments
Author:
Andriy Yurachkivsky
Translated by:
N. Semenov
Journal:
Theor. Probability and Math. Statist. 90 (2015), 207-221
MSC (2010):
Primary 60F17; Secondary 60G44
DOI:
https://doi.org/10.1090/tpms/961
Published electronically:
August 11, 2015
MathSciNet review:
3242032
Full-text PDF Free Access
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Abstract: For each $T>0$, let a tensor-valued stochastic process $Y_T$ be defined by \[ Y_T(t)=\int _0^tD Z_T(s)\otimes \vartheta _T(s), \] where $Z_T$ is an $\mathbf {R}^d$-valued locally square integrable martingale with respect to some filtration $\mathbb {F}_T$ and where $\vartheta _T$ is an $\mathbf {R}^d$-valued $\mathbb {F}_T$-predictable stochastic process such that $\int _0^t|\vartheta _T(s)|^2D\operatorname {tr}\langle Z_T\rangle (s)<\infty$ for all $t$. In this paper, conditions are found for the convergence $(Y_T, \langle Y_T\rangle )\stackrel {\textrm {law}}\longrightarrow (Y, \langle Y\rangle )$, where $Y$ is a continuous local martingale with conditionally independent increments given $\langle Y\rangle$.
References
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References
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Additional Information
Andriy Yurachkivsky
Affiliation:
Department of Operations Research, Faculty for Cybernetics, National Taras Shevchenko University, Volodymyrs’ka Street, 64, Kyiv 01601, Ukraine
Email:
andriy.yurachkivsky@gmail.com
Keywords:
Martingale,
convergence,
tensor
Received by editor(s):
June 12, 2012
Published electronically:
August 11, 2015
Article copyright:
© Copyright 2015
American Mathematical Society