Non-anticipative representations of Banach space valued gaussian processes with respect to brownian motion

D. A. Rhoades

Stochastic Processes and their Applications, 1978, vol. 8, issue 1, 11-32

Abstract: Necessary and sufficient conditions are found for the equivalence of the measures associated with (i) a Banach space valued Gaussian process, with mean 0, and (ii) a Bach space valued Brownian motion. The notion of a non-anticipative representation of (i) with respect to (ii) is defined and in the case of equivalence of the measures it is shown that such a representation exists and has an explicit stochastic integral form which is invertible. Theorems of Ershov on absolute continuity of measures associated with diffusion processes are extended to Banach space. Applications to infinite-dimensional filtering are considered.

Keywords: Gaussian; process; abstract; Wiener; space; Banach; space; measures; non-anticipative; representation; diffusion; process; infinite-dimentional; filtering (search for similar items in EconPapers)
Date: 1978
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