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arXiv 2102.10667math.AP
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一维动力学Fokker-Plank方程的一种低密度最优输运方法

An optimal transport approach of hypocoercivity for the 1d kinetic Fokker-Plank equation

Samir Salem

摘要:

在$\R^2$上引入了概率测度集上的二次最优输运度量.二次代价由$\R^2$上的欧几里德范数给出,该范数与某个适当选择的对称正定矩阵相关联,这使得该度量等价于通常的Wasserstein-2度量。沿着动力学福克-普朗克流到平衡点的距离的耗散,在距离本身方面由下限定。在非凸约束势的情况下,得到了Wasserstein-2型度量的新的趋向平衡估计。

英文摘要:

A quadratic optimal transport metric on the set of probability measure over $\R^2$ is introduced. The quadratic cost is given by the euclidean norm on $\R^2$ associated to some well chosen symmetric positive matrix, which makes the metric equivalent to the usual Wasserstein-2 metric. The dissipation of the distance to the equilibrium along the kinetic Fokker-Planck flow, is bounded by below in terms of the distance itself. It enables to obtain some new type of trend to equilibrium estimate in Wasserstein-2 like metric, in the case of non-convex confinement potential.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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