Uniform Convergence to Equilibrium for Granular Media

被引:62
作者
Bolley, Francois [1 ]
Gentil, Ivan [2 ]
Guillin, Arnaud [3 ,4 ]
机构
[1] Univ Paris 09, UMR CNRS 7534, F-75775 Paris 16, France
[2] Univ Lyon 1, UMR CNRS 5208, Inst Camille Jordan, F-69622 Villeurbanne, France
[3] Univ Blaise Pascal, UMR CNRS 6620, Inst Univ France, F-63177 Aubiere, France
[4] Univ Blaise Pascal, UMR CNRS 6620, Math Lab, F-63177 Aubiere, France
关键词
EQUATIONS;
D O I
10.1007/s00205-012-0599-z
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
We study the long time asymptotics of a nonlinear, nonlocal equation used in the modelling of granular media. We prove a uniform exponential convergence to equilibrium for degenerately convex and nonconvex interaction or confinement potentials, improving in particular results by J. A. Carrillo, R. J. McCann and C. Villani. The method is based on studying the dissipation of the Wasserstein distance between a solution and the steady state.
引用
收藏
页码:429 / 445
页数:17
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