Strong convergence of the Euler–Maruyama approximation for a class of Lévy-driven SDEs

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Contributors

Abstract

Consider the following stochastic differential equation (SDE) dXt=b(t,Xt−)dt+dLt,X0=x,driven by a d-dimensional Lévy process (Lt)t≥0. We establish conditions on the Lévy process and the drift coefficient b such that the Euler–Maruyama approximation converges strongly to a solution of the SDE with an explicitly given rate. The convergence rate depends on the regularity of b and the behaviour of the Lévy measure at the origin. As a by-product of the proof, we obtain that the SDE has a pathwise unique solution. Our result covers many important examples of Lévy processes, e.g. isotropic stable, relativistic stable, tempered stable and layered stable.

Details

Original languageEnglish
Pages (from-to)2654-2680
Number of pages27
JournalStochastic processes and their applications
Volume129
Issue number8
Publication statusPublished - Aug 2019
Peer-reviewedYes

Keywords

Keywords

  • Euler–Maruyama approximation, Stochastic differential equation, Strong convergence