A numerical algorithm for fully nonlinear HJB equations: an approach by control randomization
Abstract
We propose a probabilistic numerical algorithm to solve Backward Stochastic Differential Equations (BSDEs) with nonnegative jumps, a class of BSDEs introduced in [9] for representing fully nonlinear HJB equations. In particular, this allows us to numerically solve stochastic control problems with controlled volatility, possibly degenerate. Our backward scheme, based on least-squares regressions, takes advantage of high-dimensional properties of Monte-Carlo methods, and also provides a parametric estimate in feedback form for the optimal control. A partial analysis of the error of the scheme is provided, as well as numerical tests on the problem of superreplication of option with uncertain volatilities and/or correlations, including a detailed comparison with the numerical results from the alternative scheme proposed in [7].
Keywords
Cite
@article{arxiv.1311.4503,
title = {A numerical algorithm for fully nonlinear HJB equations: an approach by control randomization},
author = {Idris Kharroubi and Nicolas Langrené and Huyên Pham},
journal= {arXiv preprint arXiv:1311.4503},
year = {2019}
}