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- W4311991462 abstract "We introduce and analyze a new finite-difference scheme, relying on the theta-method, for solving monotone second-order mean field games. These games consist of a coupled system of the Fokker-Planck and the Hamilton-Jacobi-Bellman equation. The theta-method is used for discretizing the diffusion terms: we approximate them with a convex combination of an implicit and an explicit term. On contrast, we use an explicit centered scheme for the first-order terms. Assuming that the running cost is strongly convex and regular, we first prove the monotonicity and the stability of our theta-scheme, under a CFL condition. Taking advantage of the regularity of the solution of the continuous problem, we estimate the consistency error of the theta-scheme. Our main result is a convergence rate of order $mathcal{O}(h^r)$ for the theta-scheme, where $h$ is the step length of the space variable and $r in (0,1)$ is related to the Holder continuity of the solution of the continuous problem and some of its derivatives." @default.
- W4311991462 created "2023-01-03" @default.
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- W4311991462 date "2022-12-15" @default.
- W4311991462 modified "2023-10-03" @default.
- W4311991462 title "Error estimates of a theta-scheme for second-order mean field games" @default.
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