Banach Intermediate Spaces for Gaussian Fr\'{e}chet Spaces

In this article, we show that every centered Gaussian measure on an infinite dimensional separable Fr\'{e}chet space $X$ over $\mathbb R$ admits some full measure Banach intermediate space between $X$ and its Cameron-Martin space. We provide a way of generating such spaces and, by showing a par...

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Bibliographic Details
Main Authors Zheng, Yifei, Selk, Zachary
Format Journal Article
LanguageEnglish
Published 20.07.2021
Subjects
Mathematics - Functional Analysis
Mathematics - Probability
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Summary:In this article, we show that every centered Gaussian measure on an infinite dimensional separable Fr\'{e}chet space $X$ over $\mathbb R$ admits some full measure Banach intermediate space between $X$ and its Cameron-Martin space. We provide a way of generating such spaces and, by showing a partial converse, give a characterization of Banach intermediate spaces. Finally, we show an example of constructing an $\alpha$-H\"older intermediate space in the space of continuous functions, $\mathcal C_0[0, 1]$ with the classical Wiener measure.
DOI:10.48550/arxiv.2107.09440