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ESAIM: Proc., 2005, Vol. 15, pp. 18-57
DOI: 10.1051/proc:2005019
Some stochastic particle methods for nonlinear parabolic PDEs
Mireille BossyINRIA 2004 Route des Lucioles, B.P. 93 06902 Sophia-Antipolis Cedex France
Mireille.Bossy@sophia.inria.fr
Abstract
We introduce, on some examples, the main tools to analyze the
convergence rate of stochastic particle methods for the numerical
approximation of some nonlinear parabolic PDEs.
We treat the case of Lipschitz coefficients as well as the
case of viscous scalar conservation laws. We also discuss some
particular aspects like the case of a bounded spatial domain
or the use of a Romberg extrapolation as a speed up procedure.
Résumé
On introduit, sur certains exemples, les outils principaux pour l'analyse du taux de convergence
des méthodes particulaires stochastiques pour l'approximation numérique de quelques EDPs
paraboliques non-linéaires. On traite le cas de coefficients lipschitziens, ainsi que le cas des lois
de conservation scalaires. On discute quelques aspects particuliers comme le cas d'un domaine spatial
borné
ou l'utilisation de l'extrapolation de Romberg comme procédé d'accélération.
© EDP Sciences, ESAIM 2005
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