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arXiv 1804.09682math.PR
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infinite dimensional广义Langevin方程的小质量极限和白噪声极限

The small-mass limit and white-noise limit of an infinite dimensional Generalized Langevin Equation

Hung D. Nguyen

摘要:

研究了一类具有幂律衰减记忆核的广义朗之万方程(GLE)的渐近性质。当记忆可以表示为一个指数和,一类马尔可夫系统在无限维空间中被用来表示GLE。在最小的假设下,解在小质量极限和白噪声极限下依概率收敛到适当的系统,其中对势函数不需要利普希茨条件.通过对空间正则性和势函数的进一步假设,我们得到了$L^1$在白噪声极限下的收敛性。

英文摘要:

We study asymptotic properties of the Generalized Langevin Equation (GLE) in the presence of a wide class of external potential wells with a power-law decay memory kernel. When the memory can be expressed as a sum of exponentials, a class of Markovian systems in infinite-dimensional spaces is used to represent the GLE. The solutions are shown to converge in probability in the small-mass limit and the white-noise limit to appropriate systems under minimal assumptions, of which no Lipschitz condition is required on the potentials. With further assumptions about space regularity and potentials, we obtain $L^1$ convergence in the white-noise limit.

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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