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arXiv 1302.0673math.PR
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一类具有无界扩散的infinite dimensional随机过程

A Class of infinite dimensional stochastic Processes with unbounded Diffusion

John Karlsson, Jörg-Uwe Löbus

摘要:

本文研究了经典Wiener空间和非紧完备黎曼流形上Wiener空间的Dirichlet型。扩散算子在Cameron-Martin空间上几乎处处是无界算子.特别是,它表明,在一类变化的参考措施,准正则性的形式是保持。我们还证明了在参考测度的这些变化下,导数和散度是可闭的,并具有一定的可闭逆。我们首先处理的情况下,经典的Wiener空间,然后我们转移到Wiener空间上的黎曼流形的结果。

英文摘要:

The paper studies Dirichlet forms on the classical Wiener space and the Wiener space over non-compact complete Riemannian manifolds. The diffusion operator is almost everywhere an unbounded operator on the Cameron--Martin space. In particular, it is shown that under a class of changes of the reference measure, quasi-regularity of the form is preserved. We also show that under these changes of the reference measure, derivative and divergence are closable with certain closable inverses. We first treat the case of the classical Wiener space and then we transfer the results to the Wiener space over a Riemannian manifold.

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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