Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise

This paper aims to investigate the finite element weak convergence rate for semilinear parabolic stochastic partial differential equations(SPDEs) driven by additive noise. In contrast to many results in the current scientific literature, we investigate the more general case where the nonlinearity is...

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Main Authors: Antoine Tambue, Jean Daniel Mukam
Format: Article
Language:English
Published: Elsevier 2023-02-01
Series:Results in Applied Mathematics
Subjects:
Online Access:http://www.sciencedirect.com/science/article/pii/S2590037422000747
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author Antoine Tambue
Jean Daniel Mukam
author_facet Antoine Tambue
Jean Daniel Mukam
author_sort Antoine Tambue
collection DOAJ
description This paper aims to investigate the finite element weak convergence rate for semilinear parabolic stochastic partial differential equations(SPDEs) driven by additive noise. In contrast to many results in the current scientific literature, we investigate the more general case where the nonlinearity is allowed to be of Nemytskii-type and the linear operator is not necessarily self-adjoint, which is more challenging and models more realistic phenomena such as convection–reaction–diffusion processes. Using Malliavin calculus, Kolmogorov equations and by splitting the linear operator into a self-adjoint and non self-adjoint parts, we prove the convergence of the finite element approximation and obtain a weak convergence rate that is twice the strong convergence rate.
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spelling doaj.art-298e422ac1d7425f91315bc2fb651e8f2023-02-24T04:31:32ZengElsevierResults in Applied Mathematics2590-03742023-02-0117100351Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noiseAntoine Tambue0Jean Daniel Mukam1Department of Computer Science, Electrical Engineering and Mathematical Sciences, Western Norway University of Applied Sciences, Inndalsveien 28, 5063 Bergen, Norway; Corresponding author.Department of Mathematics, Bielefeld University, 33501 Bielefeld, GermanyThis paper aims to investigate the finite element weak convergence rate for semilinear parabolic stochastic partial differential equations(SPDEs) driven by additive noise. In contrast to many results in the current scientific literature, we investigate the more general case where the nonlinearity is allowed to be of Nemytskii-type and the linear operator is not necessarily self-adjoint, which is more challenging and models more realistic phenomena such as convection–reaction–diffusion processes. Using Malliavin calculus, Kolmogorov equations and by splitting the linear operator into a self-adjoint and non self-adjoint parts, we prove the convergence of the finite element approximation and obtain a weak convergence rate that is twice the strong convergence rate.http://www.sciencedirect.com/science/article/pii/S2590037422000747Semilinear parabolic partial differential equationsFinite element methodWeak convergenceAdditive noise
spellingShingle Antoine Tambue
Jean Daniel Mukam
Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
Results in Applied Mathematics
Semilinear parabolic partial differential equations
Finite element method
Weak convergence
Additive noise
title Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
title_full Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
title_fullStr Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
title_full_unstemmed Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
title_short Weak convergence of the finite element method for semilinear parabolic SPDEs driven by additive noise
title_sort weak convergence of the finite element method for semilinear parabolic spdes driven by additive noise
topic Semilinear parabolic partial differential equations
Finite element method
Weak convergence
Additive noise
url http://www.sciencedirect.com/science/article/pii/S2590037422000747
work_keys_str_mv AT antoinetambue weakconvergenceofthefiniteelementmethodforsemilinearparabolicspdesdrivenbyadditivenoise
AT jeandanielmukam weakconvergenceofthefiniteelementmethodforsemilinearparabolicspdesdrivenbyadditivenoise