Time discretization and Markovian iteration for coupled FBSDEs

Details Time discretization and Markovian iteration for coupled FBSDEs Time discretization and Markovian iteration for coupled FBSDEs

2008-01-21

arxiv.org/abs/0801.3203v1

Annals of Applied Probability 2008, Vol. 18, No. 1, 143-177

Mathematics

Probability

Published in at http://dx.doi.org/10.1214/07-AAP448 the Annals of Applied Probability (http://www.imstat.org/aap/) by the Inst

Scientific paper

10.1214/07-AAP448

In this paper we lay the foundation for a numerical algorithm to simulate high-dimensional coupled FBSDEs under weak coupling or monotonicity conditions. In particular, we prove convergence of a time discretization and a Markovian iteration. The iteration differs from standard Picard iterations for FBSDEs in that the dimension of the underlying Markovian process does not increase with the number of iterations. This feature seems to be indispensable for an efficient iterative scheme from a numerical point of view. We finally suggest a fully explicit numerical algorithm and present some numerical examples with up to 10-dimensional state space.

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