TY - JOUR T1 - A Positive and Monotone Numerical Scheme for Volterra-Renewal Equations with Space Fluxes AU - Annunziato , Mario AU - Messina , Eleonora JO - Journal of Computational Mathematics VL - 1 SP - 33 EP - 47 PY - 2018 DA - 2018/08 SN - 37 DO - http://doi.org/10.4208/jcm.1708-m2017-0015 UR - https://global-sci.org/intro/article_detail/jcm/12647.html KW - Volterra renewal, Piecewise deterministic process, Monotone positive numerical scheme, Bernstein polynomials. AB -
We study a numerical method for solving a system of Volterra-renewal integral equations with space fluxes, that represents the Chapman-Kolmogorov equation for a class of piecewise deterministic stochastic processes. The solution of this equation is related to the time dependent distribution function of the stochastic process and it is a non-negative and non-decreasing function of the space. Based on the Bernstein polynomials, we build up and prove a non-negative and non-decreasing numerical method to solve that equation, with quadratic convergence order in space.