A finite difference method for Piecewise Deterministic Processes with memory

Details A finite difference method for Piecewise Deterministic Processes with memory A finite difference method for Piecewise Deterministic Processes with memory

2006-10-24

arxiv.org/abs/math/0610725v2

Mathematics

Numerical Analysis

20 pages, 7 figures

Scientific paper

In this paper the numerical approximation of solutions of Liouville-Master Equations for time-dependent distribution functions of Piecewise Deterministic Processes with memory is considered. These equations are linear hyperbolic PDEs with non-constant coefficients, and boundary conditions that depend on integrals over the interior of the integration domain. We construct a finite difference method of the first order, by a combination of the upwind method, for PDEs, and by a direct quadrature, for the boundary condition. We analyse convergence of the numerical solution for distribution functions evolving towards an equilibrium. Numerical results for two problems, whose analytical solutions are known in closed form, illustrate the theoretical finding.

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