中文
相关论文

相关论文: Necessary and Sufficient Conditions for Convergenc…

200 篇论文

We revisit the moment method to obtain a slightly strengthened version of the usual semicircular law. Our version assumes only that the upper triangular entries of Hermitian random matrices are independent, have mean zero and variances…

概率论 · 数学 2019-07-30 Wooyoung Chin

In this paper we study ensembles of random symmetric matrices $\X_n = {X_{ij}}_{i,j = 1}^n$ with dependent entries such that $\E X_{ij} = 0$, $\E X_{ij}^2 = \sigma_{ij}^2$, where $\sigma_{ij}$ may be different numbers. Assuming that the…

概率论 · 数学 2013-03-19 F. Götze , A. Naumov , A. Tikhomirov

It is a classical result of Wigner that for an hermitian matrix with independent entries on and above the diagonal, the mean empirical eigenvalue distribution converges weakly to the semicircle law as matrix size tends to infinity. In this…

概率论 · 数学 2007-07-17 Katrin Hofmann-Credner , Michael Stolz

In the present paper, we prove that under the assumption of the finite sixth moment for elements of a Wigner matrix, the convergence rate of its empirical spectral distribution to the Wigner semicircular law in probability is $O(n^{-1/2})$…

概率论 · 数学 2011-05-17 Zhidong Bai , Jiang Hu , Guangming Pan , Wang Zhou

In this paper we consider a new normalization of matrices obtained by choosing distinct codewords at random from linear codes over finite fields and find that under some natural algebraic conditions of the codes their empirical spectral…

信息论 · 计算机科学 2018-08-29 Chin Hei Chan , Enoch Kung , Maosheng Xiong

The scaled standard Wigner matrix (symmetric with mean zero, variance one i.i.d. entries), and its limiting eigenvalue distribution, namely the semi-circular distribution, has attracted much attention. The $2k$th moment of the limit equals…

概率论 · 数学 2021-03-18 Arup Bose , Koushik Saha , Arusharka Sen , Priyanka Sen

These notes provide an introduction to the local semicircle law from random matrix theory, as well as some of its applications. We focus on Wigner matrices, Hermitian random matrices with independent upper-triangular entries with zero…

概率论 · 数学 2018-09-11 Florent Benaych-Georges , Antti Knowles

We consider ensembles of $N \times N$ Hermitian Wigner matrices, whose entries are (up to the symmetry constraints) independent and identically distributed random variables. Assuming sufficient regularity for the probability density…

数学物理 · 物理学 2011-03-15 Anna Maltsev , Benjamin Schlein

For a class of random matrix ensembles with correlated matrix elements, it is shown that the density of states is given by the Wigner semi-circle law. This is applied to effective Hamiltonians related to the Anderson model in dimensions…

数学物理 · 物理学 2007-05-23 Jeffrey H. Schenker , Hermann Schulz-Baldes

In this article we show the existence of limiting spectral distribution of a symmetric random matrix whose entries come from a stationary Gaussian process with covariances satisfying a summability condition. We provide an explicit…

概率论 · 数学 2013-05-15 Arijit Chakrabarty , Rajat Subhra Hazra , Deepayan Sarkar

Recently we considered a class of random matrices obtained by choosing distinct codewords at random from linear codes over finite fields and proved that under some natural algebraic conditions their empirical spectral distribution converges…

概率论 · 数学 2020-03-10 Chin Hei Chan , Maosheng Xiong

We consider real symmetric and complex Hermitian random matrices with the additional symmetry $h_{xy}=h_{N-x,N-y}$. The matrix elements are independent (up to the fourfold symmetry) and not necessarily identically distributed. This ensemble…

数学物理 · 物理学 2015-10-28 Johannes Alt

We show that Wigner semi-circle law holds for Hermitian matrices with dependent entries, provided the deviation of the cumulants from the normalised Gaussian case obeys a simple power law bound in the size of the matrix. To establish this…

数学物理 · 物理学 2017-04-05 T. Krajewski , A. Tanasa , D. L. Vu

We study ensembles of random symmetric matrices whose entries exhibit certain correlations. Examples are distributions of Curie-Weiss-type. We provide a criterion on the correlations ensuring the validity of Wigner's semicircle law for the…

数学物理 · 物理学 2014-02-25 Winfried Hochstättler , Werner Kirsch , Simone Warzel

We extend the random characteristics approach to Wigner matrices whose entries are not required to have a normal distribution. As an application, we give a simple and fully dynamical proof of the weak local semicircle law in the bulk.

概率论 · 数学 2019-12-13 Per von Soosten , Simone Warzel

For a class of symmetric random matrices whose entries are martingale differences adapted to an increasing filtration, we prove that under a Lindeberg-like condition, the empirical spectral distribution behaves asymptotically similarly to a…

概率论 · 数学 2014-02-27 Florence Merlevède , Costel Peligrad , Magda Peligrad

We introduce kernel estimators for the semicircle law. In this first part of our general theory on the estimators, we prove the consistency and conduct simulation study to show the performance of the estimators. We also point out that…

数学物理 · 物理学 2011-07-15 Wang Zhou

Since E.P.Wigner (1958) established his famous semicircle law, lots of attention has been paid by physicists, probabilists and statisticians to study the asymptotic properties of the largest eigenvalues for random matrices. Bai and Yin…

概率论 · 数学 2014-03-21 Yanqing Yin , Zhidong Bai , Jiang Hu

Let $\mathbf X=(X_{jk})$ denote a Hermitian random matrix with entries $X_{jk}$, which are independent for $1\le j\le k$. We consider the rate of convergence of the empirical spectral distribution function of the matrix $\mathbf X$ to the…

概率论 · 数学 2013-10-29 Friedrich Götze , Alexander Tikhomirov

Let $\mathbf X=(X_{jk})_{j,k=1}^n$ denote a Hermitian random matrix with entries $X_{jk}$, which are independent for $1\le j\le k\le n$. We consider the rate of convergence of the empirical spectral distribution function of the matrix…

概率论 · 数学 2015-02-10 F. Götze , A. N. Tikhomirov
‹ 上一页 1 2 3 10 下一页 ›