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arXiv 1003.3978math.PR
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抛物型随机微分方程平稳弱解的一般构造

A General Construction to Stationary Weak Solutions of Parabolic SPDEs

Huinan Leng, Qi Zhang

摘要:

本文利用一般的无穷水平倒向双随机微分方程(简称BDSDEs)构造了一类抛物型随机微分方程的平稳弱解,并给出了其非退化终端函数.为此,我们首先在加权$L^p(dx)\bigotimes L^2(dx)$空间($p>2$)中研究了这类双边带微分方程解的存在性、唯一性和平稳性。然后将加权$L^p(dx)\bigotimes L^2(dx)$空间中BDSDE的解与抛物型SPDE的弱解联系起来,得到相应的抛物型SPDE的平稳解.这一结果表明,SPDEs的平稳解可以由其相应的无穷时域BDSDEs与任何Lipschitz连续终端函数构造。

英文摘要:

In this paper we construct the stationary weak solutions of parabolic SPDEs by a general infinite horizon backward doubly stochastic differential equations (BDSDEs for short) with non-degenerate terminal functions. For this, we first study the existence, uniqueness and stationarity of solutions of such kind of BDSDEs in weighted $L^p(dx)\bigotimes L^2(dx)$ space ($p>2$). Then the corresponding stationary solutions of parabolic SPDEs can be obtained by the connection between the solutions of BDSDEs in weighted $L^p(dx)\bigotimes L^2(dx)$ space and the weak solutions of parabolic SPDEs. This result shows that the stationary solutions of SPDEs can be constructed by their corresponding infinite horizon BDSDEs with any Lipschitz continuous terminal function.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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