{ "id": "1801.08828", "version": "v1", "published": "2018-01-26T14:39:12.000Z", "updated": "2018-01-26T14:39:12.000Z", "title": "An ergodic problem for Mean Field Games: qualitative properties and numerical simulations", "authors": [ "Simone Cacace", "Fabio Camilli", "Annalisa Cesaroni", "Claudio Marchi" ], "categories": [ "math.AP" ], "abstract": "This paper is devoted to some qualitative descriptions and some numerical results for ergodic Mean Field Games systems which arise, e.g., in the homogenization with a small noise limit. We shall consider either power type potentials or logarithmic type ones. In both cases, we shall establish some qualitative properties of the effective Hamiltonian $\\bar H$ and of the effective drift $\\bar b$. In particular we shall provide two cases where the effective system keeps/looses the Mean Field Games structure, namely where $\\nabla_P \\bar H(P,\\alpha)$ coincides or not with $\\bar b(P, \\alpha)$. On the other hand, we shall provide some numerical tests validating the aforementioned qualitative properties of $\\bar H$ and $\\bar b$. In particular, we provide a numerical estimate of the discrepancy $\\nabla_P \\bar H(P,\\alpha)-\\bar b(P, \\alpha)$.", "revisions": [ { "version": "v1", "updated": "2018-01-26T14:39:12.000Z" } ], "analyses": { "keywords": [ "qualitative properties", "ergodic problem", "numerical simulations", "ergodic mean field games systems", "mean field games structure" ], "note": { "typesetting": "TeX", "pages": 0, "language": "en", "license": "arXiv", "status": "editable" } } }