Results 31 to 40 of about 167,620 (262)

A Note on Cumulant Technique in Random Matrix Theory

open access: yesEntropy, 2023
We discuss the cumulant approach to spectral properties of large random matrices. In particular, we study in detail the joint cumulants of high traces of large unitary random matrices and prove Gaussian fluctuation for pair-counting statistics with non ...
Alexander Soshnikov, Chutong Wu
doaj   +1 more source

On the Rank of Random Sparse Matrices [PDF]

open access: yesCombinatorics, Probability and Computing, 2009
We investigate the rank of random (symmetric) sparse matrices. Our main finding is that with high probability, any dependency that occurs in such a matrix is formed by a set of few rows that contains an overwhelming number of zeros. This allows us to obtain an exact estimate for the co-rank.
Kevin P. Costello, Van H. Vu
openaire   +3 more sources

The Polynomial Method for Random Matrices [PDF]

open access: yesFoundations of Computational Mathematics, 2007
We define a class of "algebraic" random matrices. These are random matrices for which the Stieltjes transform of the limiting eigenvalue distribution function is algebraic, i.e., it satisfies a (bivariate) polynomial equation. The Wigner and Wishart matrices whose limiting eigenvalue distributions are given by the semi-circle law and the Marcenko ...
N. Raj Rao, Alan Edelman
openaire   +3 more sources

Incremental universality of Wigner random matrices [PDF]

open access: yesRoyal Society Open Science
Properties of universality have essential relevance for the theory of random matrices usually called the Wigner ensemble. The issue was analysed up to recent years with detailed and relevant results.
Giovanni M. Cicuta, Mario Pernici
doaj   +1 more source

Universality classes of non-Hermitian random matrices

open access: yesPhysical Review Research, 2020
Non-Hermitian random matrices have been utilized in such diverse fields as dissipative and stochastic processes, mesoscopic physics, nuclear physics, and neural networks.
Ryusuke Hamazaki   +3 more
doaj   +1 more source

Infinite Series of Singularities in the Correlated Random Matrices Product

open access: yesFrontiers in Physics, 2021
We consider the product of a large number of two 2 × 2 matrices chosen randomly (with some correlation): at any round there are transition probabilities for the matrix type, depending on the choice at previous round. Previously, a functional equation has
Ruben Poghosyan, David B. Saakian
doaj   +1 more source

Spectra of euclidean random matrices [PDF]

open access: yesNuclear Physics B, 1999
10 pages, 4 ...
Mézard, M., Parisi, G., Zee, A.
openaire   +3 more sources

Resilience of the rank of random matrices [PDF]

open access: yesCombinatorics, Probability and Computing, 2020
AbstractLet M be an n × m matrix of independent Rademacher (±1) random variables. It is well known that if $n \leq m$, then M is of full rank with high probability. We show that this property is resilient to adversarial changes to M. More precisely, if $m \ge n + {n^{1 - \varepsilon /6}}$, then even after changing the sign of (1 – ε)m/2 entries, M is ...
Asaf Ferber, Kyle Luh, Gweneth McKinley
openaire   +2 more sources

The Smallest Singular Value Anomaly and the Condition Number Anomaly

open access: yesAxioms, 2022
Let A be an arbitrary matrix in which the number of rows, m, is considerably larger than the number of columns, n. Let the submatrix Ai,i=1,…,m, be composed of the first i rows of A.
Achiya Dax
doaj   +1 more source

RANDOM MATRICES: THE CIRCULAR LAW [PDF]

open access: yesCommunications in Contemporary Mathematics, 2008
Let x be a complex random variable with mean zero and bounded variance σ2. Let Nn be a random matrix of order n with entries being i.i.d. copies of x. Let λ1, …, λn be the eigenvalues of [Formula: see text]. Define the empirical spectral distributionμn of Nn by the formula [Formula: see text] The following well-known conjecture has been open since ...
Tao, Terence, Van, Vu
openaire   +2 more sources

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