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arXiv 2107.10752math.PR
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随机矩阵的动力学普适性

Dynamical Universality for Random Matrices

Yosuke Kawamoto, Hirofumi Osada

摘要:

建立了与随机矩阵普适性相对应的不变原理。更确切地说,我们证明了随机矩阵的动力学普适性,如果描述随机矩阵或具有一般自相互作用势$ \V $的对数气体的本征值的$ \nN $ -粒子系统的随机点场$ \muN $收敛于某个随机点场$ μ$,然后由随机微分方程(SDEs)的解表示的相关自然$ \muN $ -可逆扩散收敛到由无限维离散系统(ISDE)的解给出的某个$ μ$ -可逆扩散。我们的结果是一般定理,可应用于各种随机点场有关的随机矩阵,如正弦,Airy,Bessel,和Ginibre随机点场。一般来说,描述$ \nN $ -粒子系统的有限维微分方程的表示是非常复杂的。然而,极限ISDE有一个简单而普遍的表示,它依赖于一类随机矩阵出现在散装,并在软,硬边缘的位置。因此,我们证明了ISDE,如无限维戴森模型和Airy,Bessel和Ginibre相互作用的布朗运动是普遍的动力学对象。

英文摘要:

We establish an invariance principle corresponding to the universality of random matrices. More precisely, we prove the dynamical universality of random matrices in the sense that, if the random point fields $ \muN $ of $ \nN $-particle systems describing the eigenvalues of random matrices or log-gases with general self-interaction potentials $ \V $ converge to some random point field $ μ$, then the associated natural $ \muN $-reversible diffusions represented by solutions of stochastic differential equations (SDEs) converge to some $ μ$-reversible diffusion given by the solution of an infinite-dimensional SDE (ISDE). % Our results are general theorems that can be applied to various random point fields related to random matrices such as sine, Airy, Bessel, and Ginibre random point fields. % In general, the representations of finite-dimensional SDEs describing $ \nN $-particle systems are very complicated. Nevertheless, the limit ISDE has a simple and universal representation that depends on a class of random matrices appearing in the bulk, and at the soft- and at hard-edge positions. Thus, we prove that ISDEs such as the infinite-dimensional Dyson model and the Airy, Bessel, and Ginibre interacting Brownian motions are universal dynamical objects.

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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