On partially observed jump diffusions I

the filtering equations

Journal Article (2025)
Author(s)

Fabian Germ (University of Edinburgh, TU Delft - Electrical Engineering, Mathematics and Computer Science)

István Gyöngy (University of Edinburgh)

Research Group
Analysis
DOI related publication
https://doi.org/10.1007/s40072-025-00353-4 Final published version
More Info
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Publication Year
2025
Language
English
Research Group
Analysis
Journal title
Stochastics and Partial Differential Equations: Analysis and Computations
Issue number
3
Volume number
13
Pages (from-to)
1319-1354
Downloads counter
58
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Abstract

This paper is the first part of a series of papers on filtering for partially observed jump diffusions satisfying a stochastic differential equation driven by Wiener processes and Poisson martingale measures. The coefficients of the equation only satisfy appropriate growth conditions. Some results in filtering theory of diffusion processes are extended to jump diffusions and equations for the time evolution of the conditional distribution and the unnormalised conditional distribution of the unobserved process at time t, given the observations until t, are presented.