Convergence of a finite-volume scheme for a heat equation with a multiplicative Lipschitz noise

Autor: Bauzet, Caroline, Nabet, Flore, Schmitz, Kerstin, Zimmermann, Aleksandra
Rok vydání: 2022
Předmět:
Zdroj: ESAIM Math. Model. Numer. Anal. 57 (2023), no.2, 745-783
Druh dokumentu: Working Paper
DOI: 10.1051/m2an/2022087
Popis: We study here the approximation by a finite-volume scheme of a heat equation forced by a Lipschitz continuous multiplicative noise in the sense of It\^o. More precisely, we consider a discretization which is semi-implicit in time and a two-point flux approximation scheme (TPFA) in space. We adapt the method based on the theorem of Prokhorov to obtain a convergence in distribution result, then Skorokhod's representation theorem yields the convergence of the scheme towards a martingale solution and the Gy\"{o}ngy-Krylov argument is used to prove convergence in probability of the scheme towards the unique variational solution of our parabolic problem.
Databáze: arXiv