EXIT PROBLEM FOR ORNSTEIN-UHLENBECK PROCESSES: A RANDOM WALK APPROACH

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TitreEXIT PROBLEM FOR ORNSTEIN-UHLENBECK PROCESSES: A RANDOM WALK APPROACH
Type de publicationJournal Article
Year of Publication2020
AuteursHerrmann S, Massin N
JournalDISCRETE AND CONTINUOUS DYNAMICAL SYSTEMS-SERIES B
Volume25
Pagination3199-3215
Date PublishedAUG
Type of ArticleArticle
ISSN1531-3492
Mots-clésExit time, generalized spheroids, Ornstein-Uhlenbeck processes, WOMS algorithm
Résumé

In order to approximate the exit time of a one-dimensional diffusion process, we propose an algorithm based on a random walk. Such an algorithm so-called Walk on Moving Spheres was already introduced in the Brownian context. The aim is therefore to generalize this numerical approach to the Ornstein-Uhlenbeck process and to describe the efficiency of the method.

DOI10.3934/dcdsb.2020058