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We investigate the asymptotics of eigenvalues of sample covariance matrices associated with a class of non-independent Gaussian processes (separable and temporally stationary) under the Kolmogorov asymptotic regime. The limiting spectral…

概率论 · 数学 2019-10-11 Tiebin Mi , Robert Caiming Qiu

We study the distribution of singular values of product of random matrices pertinent to the analysis of deep neural networks. The matrices resemble the product of the sample covariance matrices, however, an important difference is that the…

数学物理 · 物理学 2022-07-05 L. Pastur , V. Slavin

We show that, under mild assumptions, the spectrum of a sum of independent random matrices is close to that of the Gaussian random matrix whose entries have the same mean and covariance. This nonasymptotic universality principle yields…

概率论 · 数学 2024-06-26 Tatiana Brailovskaya , Ramon van Handel

We study products of functions evaluated at self-adjoint polynomials in deterministic matrices and independent Wigner matrices; we compute the deterministic approximations of such products and control the fluctuations. We focus on…

概率论 · 数学 2024-03-18 Félix Parraud , Kevin Schnelli

This paper studies the asymptotic behavior of eigenvalues of random abelian G-circulant matrices, that is, matrices whose structure is related to a finite abelian group G in a way that naturally generalizes the relationship between…

概率论 · 数学 2012-08-17 Mark W. Meckes

Appropriately normalized square random Vandermonde matrices based on independent random variables with uniform distribution on the unit circle are studied. It is shown that as the matrix sizes increases without bound, with respect to the…

概率论 · 数学 2017-07-25 March Boedihardjo , Ken Dykema

The inference procedure for the mean of a stationary time series is usually quite different under various model assumptions because the partial sum process behaves differently depending on whether the time series is short or long-range…

统计理论 · 数学 2016-03-22 Shuyang Bai , Murad S. Taqqu , Ting Zhang

We consider the probability of having two intervals (gaps) without eigenvalues in the bulk scaling limit of the Gaussian Unitary Ensemble of random matrices. We describe uniform asymptotics for the transition between a single large gap and…

泛函分析 · 数学 2020-03-19 Benjamin Fahs , Igor Krasovsky

We show that the limit laws of random matrices, whose entries are conditionally independent operator valued random variables having equal second moments proportional to the size of the matrices, are operator valued semicircular laws.…

算子代数 · 数学 2018-06-15 Weihua Liu

In this note, we show that the limiting spectral distribution of symmetric random matrices with stationary entries is absolutely continuous under some sufficient conditions. This result is applied to obtain sufficient conditions on a…

概率论 · 数学 2015-02-10 Arijit Chakrabarty , Rajat Subhra Hazra

It is natural to regulate an infinite-sized system by imposing a boundary condition at finite distance, placing the system in a "box." This breaks symmetries, though the breaking is small when the box is large. One should thus be able to…

广义相对论与量子宇宙学 · 物理学 2015-12-16 Tomas Andrade , Donald Marolf

In this review we discuss the relationship between random matrix theories and symmetric spaces. We show that the integration manifolds of random matrix theories, the eigenvalue distribution, and the Dyson and boundary indices characterizing…

凝聚态物理 · 物理学 2009-11-10 M. Caselle , U. Magnea

The stochastic block model (SBM) is a probabilistic model de- signed to describe heterogeneous directed and undirected graphs. In this paper, we address the asymptotic inference on SBM by use of maximum- likelihood and variational…

统计理论 · 数学 2012-10-02 Alain Celisse , J. -J. Daudin , Laurent Pierre

Random fields play a central role in the analysis of spatially correlated data and, as a result, have a significant impact on a broad array of scientific applications. This paper studies the cepstral random field model, providing recursive…

统计理论 · 数学 2014-01-17 Tucker S. McElroy , Scott H. Holan

We show that finite rank perturbations of certain random matrices fit in the framework of infinitesimal (type B) asymptotic freeness. This can be used to explain the appearance of free harmonic analysis (such as subordination functions…

概率论 · 数学 2015-09-30 D. Shlyakhtenko

We analyse the asymptotic symmetries of Maxwell theory at spatial infinity through the Hamiltonian formalism. Precise, consistent boundary conditions are explicitly given and shown to be invariant under asymptotic angle-dependent…

高能物理 - 理论 · 物理学 2018-05-30 Marc Henneaux , Cédric Troessaert

Scale-free networks contain many small cliques and cycles. We model such networks as inhomogeneous random graphs with regularly varying infinite-variance weights. For these models, the number of cliques and cycles have exact integral…

概率论 · 数学 2019-03-27 A. J. E. M. Janssen , Johan S. H. van Leeuwaarden , Seva Shneer

Random matrix theory has played a major role in several areas of pure and applied mathematics, as well as statistics, physics, and computer science. This lecture aims to describe the intrinsic freeness phenomenon and how it provides new…

概率论 · 数学 2025-10-02 Afonso S. Bandeira

We develop a supersymmetric field theoretical description of the Gaussian ensemble of the almost diagonal Hermitian Random Matrices. The matrices have independent random entries H_{ij} with parametrically small off-diagonal elements…

无序系统与神经网络 · 物理学 2016-09-07 Oleg Yevtushenko , Alexander Ossipov

We introduce a new technique to prove bounds for the spectral radius of a random matrix, based on using Jensen's formula to establish the zerofreeness of the associated characteristic polynomial in a region of the complex plane. Our…

概率论 · 数学 2025-10-01 Sidhanth Mohanty , Amit Rajaraman