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arXiv 2105.08802math.PR
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wave equation的Stratonovich解决方案

Stratonovich solution for the wave equation

Raluca M. Balan

摘要:

在这篇文章中,我们构造了空间维随机波动方程$d \leq 2$的Stratonovich解,其中噪声与时间无关,线性项$σ(u)=u$乘以噪声。噪声是空间均匀的,其谱测度满足比Dalang条件更强的可积性条件。我们给出了这个解的概率表示,类似于Dalang,Mueller和Tribe(2008)中给出的Feynman-Kac型公式,用于求解具有空间均匀高斯噪声的随机波动方程,即时间上是白色的。我们还给出了Stratonovich解的混沌展开,并将其与Balan,Chen和Chen(2020)的Skorohod解的混沌展开进行了比较。

英文摘要:

In this article, we construct a Stratonovich solution for the stochastic wave equation in spatial dimension $d \leq 2$, with time-independent noise and linear term $σ(u)=u$ multiplying the noise. The noise is spatially homogeneous and its spectral measure satisfies an integrability condition which is stronger than Dalang's condition. We give a probabilistic representation for this solution, similar to the Feynman-Kac-type formula given in Dalang, Mueller and Tribe (2008) for the solution of the stochastic wave equation with spatially homogeneous Gaussian noise, that is white in time. We also give the chaos expansion of the Stratonovich solution and we compare it with the chaos expansion of the Skorohod solution from Balan, Chen and Chen (2020).

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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