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arXiv 1602.00449math.PRcond-mat.stat-mechmath-phmath.MP
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Dyson模型水动力极限的特征

Characterizations of the hydrodynamic limit of the Dyson model

Sergio Andraus, Makoto Katori

摘要:

在适当的初始组态条件下,当$N$趋于无穷大时,含参数$β\geq 1$的$N$ -粒子Dyson模型的经验测度收敛于唯一的测度值过程,该过程与$β$无关.极限过程的特征在于其称为格林函数的斯蒂尔切斯变换。由于格林函数在无粘极限满足复杂的伯格斯方程,这被称为戴森模型的流体动力学极限。本文综述了格林函数的流体力学方程、密度函数的连续性方程和格林函数的函数方程之间的关系。证明这些关系的基本工具是希尔伯特变换,Sokhotski-Plemelj定理的一个特例,以及求解偏微分方程的特征线法。对于两个特殊的初始配置,我们演示了如何使用这些关系来刻画极限过程。

英文摘要:

Under appropriate conditions for the initial configuration, the empirical measure of the $N$-particle Dyson model with parameter $β\geq 1$ converges to a unique measure-valued process as $N$ goes to infinity, which is independent of $β$. The limit process is characterized by its Stieltjes transform called the Green's function. Since the Green's function satisfies the complex Burgers equation in the inviscid limit, this is called the hydrodynamic limit of the Dyson model. We review the relations among the hydrodynamic equation of the Green's function, the continuity equation of the probability density function, and the functional equation of the Green's function. The basic tools to prove the relations are the Hilbert transform, a special case of the Sokhotski-Plemelj theorem, and the method of characteristics for solving partial differential equations. For two special initial configurations, we demonstrate how to characterize the limit processes using these relations.

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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