Obstacle mean field game problem

by D. Gomes, S. Patrizi
Manuscripts Year: 2014


D. Gomes and S. Patrizi, Obstacle mean field game problem. To appear in Interfaces and Free Boundaries.​


In this paper, we introduce and study a first-order mean-field game obstacle problem. We examine the case of local dependence on the measure under assumptions that include both the logarithmic case and power-like nonlinearities. Since the obstacle operator is not differentiable, the equations for first-order mean field game problems have to be discussed carefully. Hence, we begin by considering a penalized problem. We prove this problem admits a unique solution satisfying uniform bounds. These bounds serve to pass to the limit in the penalized problem and to characterize the limiting equations. Finally, we prove uniqueness of solutions.​




Mean field games obstacle problem variational inequalities