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arXiv 1609.09282math.PR
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Skorohod积分的最优逼近

Optimal approximation of Skorohod integrals

Andreas Neuenkirch, Peter Parczewski

摘要:

本文确定了充分正则被积函数的Skorohod积分的最优逼近率。这推广了伊藤积分的最优逼近结果。然而,如果没有适应性和伊藤等距,就需要新的证明技术。主要的工具是通过S-变换和Wick解析泛函的Wiener混沌分解的一个表征。

英文摘要:

In this manuscript, we determine the optimal approximation rate for Skorohod integrals of sufficiently regular integrands. This generalizes the optimal approximation results for Itô integrals. However, without adaptedness and the Itô isometry, new proof techniques are required. The main tools are a characterization via S-transform and a reformulation of the Wiener chaos decomposition in terms of Wick-analytic functionals.

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