On the time discretization of stochastic optimal control problems: The dynamic programming approach

In this work, we consider the time discretization of stochastic optimal control problems. Under general assumptions on the data, we prove the convergence of the value functions associated with the discrete time problems to the value function of the original problem. Moreover, we prove that any sequence of optimal solutions of discrete problems is minimizing for the continuous one. As a consequence of the Dynamic Programming Principle for the discrete problems, the minimizing sequence can be taken in discrete time feedback form. Fil: Joseph Frédéric, Bonnans. Institut National de Recherche en Informatique et en Automatique; Francia. Centre National de la Recherche Scientifique; Francia. Université Paris-Saclay; Francia Fil: Gianatti, Justina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Rosario. Centro Internacional Franco Argentino de Ciencias de la Información y de Sistemas. Universidad Nacional de Rosario. Centro Internacional Franco Argentino de Ciencias de la Información y de Sistemas; Argentina Fil: Silva, Francisco J.. Centre National de la Recherche Scientifique; Francia. Universite de Limoges; Francia