Abstract
In this paper, we will establish a discrete-time version of Clark(–Ocone–Haussmann) formula, which can be seen as an asymptotic expansion in a weak sense. The formula is applied to the estimation of the error caused by the martingale representation. Throughout, we use another distribution theory with respect to Gaussian rather than Lebesgue measure, which can be seen as a discrete Malliavin calculus.
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Jirô Akahori: The First author was supported by JSPS KAKENHI Grant Number 23330109, 24340022, 23654056, 25285102 and the project RARE-318984 (an FP7 Marie Curie IRSES).
Takafumi Amaba: This work was supported by JSPS KAKENHI Grant Number 24\(\cdot \)5772.
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Akahori, J., Amaba, T. & Okuma, K. A Discrete-Time Clark–Ocone Formula and its Application to an Error Analysis. J Theor Probab 30, 932–960 (2017). https://doi.org/10.1007/s10959-016-0666-8
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DOI: https://doi.org/10.1007/s10959-016-0666-8
Keywords
- Discrete Clark–Ocone formula
- Discrete Malliavin calculus
- Sobolev differentiability-index is the rate of convergence