Second weak order explicit stabilized methods for stiff stochastic differential equations

We introduce a new family of explicit integrators for stiff Itˆo stochastic differential equations (SDEs) of weak order two. These numerical methods belong to the class of onestep stabilized methods with extended stability domains and do not suffer from stepsize reduction that standard explicit meth...

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Autores principales: Abdulle, A, Vilmart, G, Zygalakis, K
Formato: Journal article
Publicado: 2012
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author Abdulle, A
Vilmart, G
Zygalakis, K
author_facet Abdulle, A
Vilmart, G
Zygalakis, K
author_sort Abdulle, A
collection OXFORD
description We introduce a new family of explicit integrators for stiff Itˆo stochastic differential equations (SDEs) of weak order two. These numerical methods belong to the class of onestep stabilized methods with extended stability domains and do not suffer from stepsize reduction that standard explicit methods face. The family is based on the classical stabilized methods of order two for deterministic problems and its construction relies on the strategy of modified equations recently introduced for SDEs. The convergence and the stability properties of the methods are analyzed. Numerical experiments, including applications to nonlinear SDEs and parabolic stochastic partial differential equations (SPDEs), are presented and confirm the theoretical results.
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spelling oxford-uuid:8626650a-a67d-4027-beb7-2a5ad433b7e62022-03-26T22:02:04ZSecond weak order explicit stabilized methods for stiff stochastic differential equationsJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:8626650a-a67d-4027-beb7-2a5ad433b7e6Mathematical Institute - ePrints2012Abdulle, AVilmart, GZygalakis, KWe introduce a new family of explicit integrators for stiff Itˆo stochastic differential equations (SDEs) of weak order two. These numerical methods belong to the class of onestep stabilized methods with extended stability domains and do not suffer from stepsize reduction that standard explicit methods face. The family is based on the classical stabilized methods of order two for deterministic problems and its construction relies on the strategy of modified equations recently introduced for SDEs. The convergence and the stability properties of the methods are analyzed. Numerical experiments, including applications to nonlinear SDEs and parabolic stochastic partial differential equations (SPDEs), are presented and confirm the theoretical results.
spellingShingle Abdulle, A
Vilmart, G
Zygalakis, K
Second weak order explicit stabilized methods for stiff stochastic differential equations
title Second weak order explicit stabilized methods for stiff stochastic differential equations
title_full Second weak order explicit stabilized methods for stiff stochastic differential equations
title_fullStr Second weak order explicit stabilized methods for stiff stochastic differential equations
title_full_unstemmed Second weak order explicit stabilized methods for stiff stochastic differential equations
title_short Second weak order explicit stabilized methods for stiff stochastic differential equations
title_sort second weak order explicit stabilized methods for stiff stochastic differential equations
work_keys_str_mv AT abdullea secondweakorderexplicitstabilizedmethodsforstiffstochasticdifferentialequations
AT vilmartg secondweakorderexplicitstabilizedmethodsforstiffstochasticdifferentialequations
AT zygalakisk secondweakorderexplicitstabilizedmethodsforstiffstochasticdifferentialequations