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- W4309270133 abstract "We establish an explicit rate of convergence for some systems of mean-field interacting diffusions with logistic binary branching towards the solutions of nonlinear evolution equations with non-local self-diffusion and logistic mass growth, shown to describe their large population limits in arXiv:1303.3939. The proof relies on a novel coupling argument for binary branching diffusions based on optimal transport, which allows us to sharply mimic the trajectory of the interacting binary branching population by certain system of independent particles with suitably distributed random space-time births. We are thus able to derive an optimal convergence rate, in the dual bounded-Lipschitz distance on finite measures, for the empirical measure of the population, from the convergence rate in 2-Wasserstein distance of empirical distributions of i.i.d. samples. Our approach and results extend techniques and ideas on propagation of chaos from kinetic models to stochastic systems of interacting branching populations, and appear to be new in this setting, even in the simple case of pure binary branching diffusions." @default.
- W4309270133 created "2022-11-25" @default.
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- W4309270133 date "2021-01-11" @default.
- W4309270133 modified "2023-09-26" @default.
- W4309270133 title "Quantitative mean-field limit for interacting branching diffusions" @default.
- W4309270133 doi "https://doi.org/10.48550/arxiv.2101.04099" @default.
- W4309270133 hasPublicationYear "2021" @default.
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