Journal
BERNOULLI
Volume 27, Issue 2, Pages 1057-1076Publisher
INT STATISTICAL INST
DOI: 10.3150/20-BEJ1265
Keywords
Central limit theorem; linear eigenvalue statistics; generalized Wigner matrix
Categories
Funding
- European Research Council (ERC) under the European Union Horizon 2020 research and innovation program [647133]
- Goran Gustafsson Foundation
- Swedish Research Council [VR-2017-05195]
- Swedish Research Council [2017-05195] Funding Source: Swedish Research Council
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We consider an N by N real or complex generalized Wigner matrix with independent centered random variables. Gaussian fluctuations for linear eigenvalue statistics are established on global scales and mesoscopic scales, up to the spectral edges, with universal mesoscopic central limit theorems obtained for statistics inside the bulk and at the edges.
We consider an N by N real or complex generalized Wigner matrix H-N, whose entries are independent centered random variables with uniformly bounded moments. We assume that the variance profile, s(ij) := E vertical bar H-ij vertical bar(2), satisfies Sigma(N)(i=1) s(ij) = 1, for all 1 <= j <= N and c(-1) <= Ns(ij) <= c for all 1 <= i, j <= N with some constant c >= 1. We establish Gaussian fluctuations for the linear eigenvalue statistics of HN on global scales, as well as on all mesoscopic scales up to the spectral edges, with the expectation and variance formulated in terms of the variance profile. We subsequently obtain the universal mesoscopic central limit theorems for the linear eigenvalue statistics inside the bulk and at the edges, respectively.
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