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Efficient schemes for sampling from the eigenvalues of the Wishart distribution have recently been described for both the uncorrelated central case (where the covariance matrix is $\mathbf{I}$) and the spiked Wishart with a single spike…

统计计算 · 统计学 2024-10-10 Thomas G. Brooks

Let $f=(f_1,\ldots,f_n)$ be a system of $n$ complex homogeneous polynomials in $n$ variables of degree $d$. We call $\lambda\in\mathbb{C}$ an eigenvalue of $f$ if there exists $v\in\mathbb{C}^n\backslash\{0\}$ with $f(v)=\lambda v$,…

代数几何 · 数学 2016-02-04 Paul Breiding , Peter Bürgisser

The Householder reduction of a member of the anti-symmetric Gaussian unitary ensemble gives an anti-symmetric tridiagonal matrix with all independent elements. The random variables permit the introduction of a positive parameter $\beta$,…

数学物理 · 物理学 2015-05-13 Ioana Dumitriu , Peter J. Forrester

We review the ideas of how random matrix theory has to be properly applied to quantum physics; particularly we focus on how the spectrum has to be properly prepared and the random matrix correctly identified before the random matrix and the…

量子物理 · 物理学 2026-04-28 Mario Kieburg

Given a collection $\{\lambda_1, \dots, \lambda_n\} $ of real numbers, there is a canonical probability distribution on the set of real symmetric or complex Hermitian matrices with eigenvalues $\lambda_1,\ldots,\lambda_n$. In this paper, we…

概率论 · 数学 2023-11-30 Elizabeth S. Meckes , Mark W. Meckes

We present a numerical algorithm for the computation of invariant Ruelle distributions on convex co-compact hyperbolic surfaces. This is achieved by exploiting the connection between invariant Ruelle distributions and residues of…

动力系统 · 数学 2023-08-28 Philipp Schütte , Tobias Weich

Networks are often studied using the eigenvalues of their adjacency matrix, a powerful mathematical tool with a wide range of applications. Since in real systems the exact graph structure is not known, researchers resort to random graphs to…

谱理论 · 数学 2020-01-30 Pau Vilimelis Aceituno

We address overcrowding estimates for the singular values of random iid matrices, as well as for the eigenvalues of random Wigner matrices. We show evidence of long range separation under arbitrary perturbation even in matrices of discrete…

概率论 · 数学 2018-10-09 Hoi H. Nguyen

By providing a simple and efficient way of computing low-variance gradients of continuous random variables, the reparameterization trick has become the technique of choice for training a variety of latent variable models. However, it is not…

机器学习 · 计算机科学 2019-01-31 Michael Figurnov , Shakir Mohamed , Andriy Mnih

A method to generate new classes of random matrix ensembles is proposed. Random matrices from these ensembles are Lax matrices of classically integrable systems with a certain distribution of momenta and coordinates. The existence of an…

混沌动力学 · 物理学 2011-09-26 E. Bogomolny , O. Giraud , C. Schmit

We describe an iterative method to optimize the multi-scale entanglement renormalization ansatz (MERA) for the low-energy subspace of local Hamiltonians on a D-dimensional lattice. For translation invariant systems the cost of this…

强关联电子 · 物理学 2015-05-13 G. Evenbly , G. Vidal

This is a first paper by the authors dedicated to the distribution of eigenvalues for random perturbations of large bidiagonal Toeplitz matrices.

谱理论 · 数学 2015-12-21 Johannes Sjoestrand , Martin Vogel

We introduce a novel eigenvalue algorithm for near-diagonal matrices inspired by Rayleigh-Schr\"odinger perturbation theory and termed Iterative Perturbative Theory (IPT). Contrary to standard eigenvalue algorithms, which are either…

数值分析 · 数学 2022-11-18 Maseim Kenmoe , Ronald Kriemann , Matteo Smerlak , Anton S. Zadorin

We consider the empirical eigenvalue distribution of random real symmetric matrices with stochastically independent skew-diagonals and study its limit if the matrix size tends to infinity. We allow correlations between entries on the same…

概率论 · 数学 2015-10-23 Kristina Schubert

This paper studies the eigenvalue distribution of the Watts-Strogatz random graph, which is known as the "small-world" random graph. The construction of the small-world random graph starts with a regular ring lattice of n vertices; each has…

概率论 · 数学 2021-01-28 Poramate Nakkirt

We review our recent results on pseudo-hermitian random matrix theory which were hitherto presented in various conferences and talks. (Detailed accounts of our work will appear soon in separate publications.) Following an introduction of…

数学物理 · 物理学 2021-10-27 Joshua Feinberg , Roman Riser

Tensor-valued and matrix-valued measurements of different physical properties are increasingly available in material sciences and medical imaging applications. The eigenvalues and eigenvectors of such multivariate data provide novel and…

统计方法学 · 统计学 2017-07-24 Dario Gasbarra , Sinisa Pajevic , Peter J. Basser

We analyze complex networks under random matrix theory framework. Particularly, we show that $\Delta_3$ statistic, which gives information about the long range correlations among eigenvalues, provides a qualitative measure of randomness in…

统计力学 · 物理学 2015-05-13 Sarika Jalan , Jayendra N. Bandyopadhyay

The degree of entanglement of random pure states in bipartite quantum systems can be estimated from the distribution of the extreme Schmidt eigenvalues. For a bipartition of size M\geq N, these are distributed according to a…

数学物理 · 物理学 2011-06-07 Gernot Akemann , Pierpaolo Vivo

This paper offers a review of numerical methods for computation of the eigenvalues of Hermitian matrices and the singular values of general and some classes of structured matrices. The focus is on the main principles behind the methods that…

数值分析 · 数学 2020-06-05 Zlatko Drmač