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arXiv 2008.06308math.PR
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希尔伯特空间中Lévy型发展和某些$α$ -稳定过程的时间正则性

Time regularity of Lévy-type evolution in Hilbert spaces and of some $α$-stable processes

Witold Bednorz, Anna Talarczyk

摘要:

本文考虑希尔伯特空间$H$中线性方程的弱càdlàg形式解的存在性,该解由取希尔伯特空间$U$中值的Levy过程驱动.特别是,我们感兴趣的对角型过程,在坐标过程是独立的$α$稳定的对称过程的泛函。在这种情况下,我们给出了当且仅当刻画。我们采用相同的技术,以获得一个càdlàg版本的稳定过程描述为确定性函数的积分相对于对称$α$ -稳定随机措施$α\in[1,2)$的存在的充分条件。

英文摘要:

In this paper we consider the existence of weakly càdlàg versions of a solution to a linear equation in a Hilbert space $H$, driven by a Levy process taking values in a Hilbert space $U$. In particular we are interested in diagonal type processes, where process on coordinates are functionals of independent $α$ stable symmetric process. We give the if and only if characterization in this case. We apply the same techniques to obtain a sufficient condition for existence of a càdlàg versions of stable processes described as integrals of deterministic functions with respect to symmetric $α$-stable random measures with $α\in[1,2)$.

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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