High-dimensional central limit theorems for a class of particle systems

被引:2
|
作者
Song, Jian [1 ,2 ]
Yao, Jianfeng [3 ]
Yuan, Wangjun [4 ]
机构
[1] Shandong Univ, Res Ctr Math & Interdisciplinary Sci, Qingdao 266237, Shandong, Peoples R China
[2] Shandong Univ, Sch Math, Jinan 250100, Shandong, Peoples R China
[3] Univ Hong Kong, Dept Stat & Actuarial Sci, Hong Kong, Peoples R China
[4] Univ Hong Kong, Dept Math, Hong Kong, Peoples R China
来源
基金
中国国家自然科学基金;
关键词
Dyson's Brownian motion; Wishart process; particle system; squared Bessel particle system; central limit theorem; matrix-valued Ornstein-Uhlenbeck process; DIFFUSING PARTICLES; LARGE DEVIATIONS; LAWS; EIGENVALUES;
D O I
10.1214/21-EJP646
中图分类号
O21 [概率论与数理统计]; C8 [统计学];
学科分类号
020208 ; 070103 ; 0714 ;
摘要
We consider a class of particle systems that generalizes the eigenvalues of a class of matrix-valued processes, of which the empirical measures converge to deterministic measures as the dimension goes to infinity. In this paper, we obtain central limit theorems (CLTs) to characterize the fluctuations of the empirical measures around the limit measures by using stochastic calculus. As applications, CLTs for Dyson's Brownian motion and the eigenvalues of Wishart process are recovered under slightly more general initial conditions, and a CLT for the eigenvalues of a symmetric matrix-valued Ornstein-Uhlenbeck process is obtained.
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页数:33
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