On first order mean field game systems with a common noise
Analysis of PDEs
2020-09-28 v1 Optimization and Control
Abstract
We consider Mean Field Games without idiosyncratic but with Brownian type common noise. We introduce a notion of solutions of the associated backward-forward system of stochastic partial differential equations. We show that the solution exists and is unique for monotone coupling functions. This the first general result for solutions of the Mean Field Games system with common and no idiosynctratic noise. We also use the solution to find approximate optimal strategies (Nash equilibria) for N-player differential games with common but no idiosyncratic noise. An important step in the analysis is the study of the well-posedness of a stochastic backward Hamilton-Jacobi equation.
Keywords
Cite
@article{arxiv.2009.12134,
title = {On first order mean field game systems with a common noise},
author = {Pierre Cardaliaguet and Panagiotis Souganidis},
journal= {arXiv preprint arXiv:2009.12134},
year = {2020}
}