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We study the statistical properties of eigenvalues of the Hessian matrix ${\cal H}$ (matrix of second derivatives of the potential energy) for a classical atomic liquid, and compare these properties with predictions for random matrix models…

统计力学 · 物理学 2016-08-31 Srikanth Sastry , Nivedita Deo , Silvio Franz

The eigendecomposition of the coupling matrix of large biological networks is central to the study of the dynamics of these networks. For neural networks, this matrix should reflect the topology of the network and conform with Dale's law…

神经元与认知 · 定量生物学 2015-09-08 Hervé Rouault , Shaul Druckmann

We compute the joint distributions of arbitrary numbers of eigenvectors of real and complex symmetric random tensors by the quantum field theoretical methods which were previously used to compute the mean distributions. We obtain the random…

高能物理 - 理论 · 物理学 2026-05-12 Naoki Sasakura

We study the sensitivity of the eigenvectors of random matrices, showing that even small perturbations make the eigenvectors almost orthogonal. More precisely, we consider two deformed Wigner matrices $W+D_1$, $W+D_2$ and show that their…

概率论 · 数学 2026-03-03 Giorgio Cipolloni , László Erdős , Joscha Henheik , Oleksii Kolupaiev

A feature of certain ensembles of random matrices is that the corresponding measure is invariant under conjugation by unitary matrices. Study of such ensembles realised by matrices with Gaussian entries leads to statistical quantities…

经典分析与常微分方程 · 数学 2009-11-11 P. J. Forrester , N. S. Witte

A one-parameter random matrix model is proposed for describing the statistics of the local amplitudes and phases of electron eigenfunctions in a mesoscopic quantum dot in an arbitrary magnetic field. Comparison of the statistics obtained…

凝聚态物理 · 物理学 2009-10-28 E. Kanzieper , V. Freilikher

In this work, we study some statistical properties of the extreme eigenstates of the randomly-weighted adjacency matrices of random graphs. We focus on two random graph models: Erd\H{o}s-R\'{e}nyi (ER) graphs and random geometric graphs…

无序系统与神经网络 · 物理学 2025-06-17 C. T Martínez Martínez , J. A. Méndez Bermúdez

Eigenvalue distributions are important dynamical quantities in matrix models, and it is a challenging problem to derive them in tensor models. In this paper, we consider real symmetric order-three tensors with Gaussian distributions as the…

高能物理 - 理论 · 物理学 2022-12-16 Naoki Sasakura

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

Complex networks with directed, local interactions are ubiquitous in nature, and often occur with probabilistic connections due to both intrinsic stochasticity and disordered environments. Sparse non-Hermitian random matrices arise…

无序系统与神经网络 · 物理学 2019-12-04 Grace H. Zhang , David R. Nelson

We analyze gene co-expression network under the random matrix theory framework. The nearest neighbor spacing distribution of the adjacency matrix of this network follows Gaussian orthogonal statistics of random matrix theory (RMT). Spectral…

分子网络 · 定量生物学 2015-05-18 Sarika Jalan , Norbert Solymosi , Gabör Vattay , Baowen Li

Consider the ensemble of Real Symmetric Toeplitz Matrices, each entry iidrv from a fixed probability distribution p of mean 0, variance 1, and finite higher moments. The limiting spectral measure (the density of normalized eigenvalues)…

概率论 · 数学 2010-11-16 Christopher Hammond , Steven J. Miller

Learning rate schedulers have been widely adopted in training deep neural networks. Despite their practical importance, there is a discrepancy between its practice and its theoretical analysis. For instance, it is not known what schedules…

机器学习 · 计算机科学 2022-06-15 Rui Pan , Haishan Ye , Tong Zhang

We present a generalization of the method of the local relaxation flow to establish the universality of local spectral statistics of a broad class of large random matrices. We show that the local distribution of the eigenvalues coincides…

数学物理 · 物理学 2010-08-20 Laszlo Erdos , Benjamin Schlein , Horng-Tzer Yau , Jun Yin

We study the eigenvectors of generalized Wigner matrices with subexponential entries and prove that they delocalize at the optimal rate with overwhelming probability. We also prove high probability delocalization bounds with sharp…

概率论 · 数学 2021-09-10 Lucas Benigni , Patrick Lopatto

We define a new diffusive matrix model converging towards the $\beta$-Dyson Brownian motion for all $\beta\in [0,2]$ that provides an explicit construction of $\beta$-ensembles of random matrices that is invariant under the…

概率论 · 数学 2013-06-25 Romain Allez , Alice Guionnet

We consider the problem of obtaining effective representations for the solutions of linear, vector-valued stochastic differential equations (SDEs) driven by non-Gaussian pure-jump L\'evy processes, and we show how such representations lead…

概率论 · 数学 2023-11-09 Marcos Tapia Costa , Ioannis Kontoyiannis , Simon Godsill

We establish a finite-sample Berry-Esseen theorem for the entrywise limits of the eigenvectors for a broad collection of signal-plus-noise random matrix models under challenging weak signal regimes. The signal strength is characterized by a…

统计理论 · 数学 2022-03-08 Fangzheng Xie

We derive the mean eigenvalue density for symmetric Gaussian random N x N matrices in the limit of large N, with a constraint implying that the row sum of matrix elements should vanish. The result is shown to be equivalent to a result found…

无序系统与神经网络 · 物理学 2009-11-10 J. Staering , B. Mehlig , Yan V. Fyodorov , J. M. Luck

Consider large signal-plus-noise data matrices of the form $S + \Sigma^{1/2} X$, where $S$ is a low-rank deterministic signal matrix and the noise covariance matrix $\Sigma$ can be anisotropic. We establish the asymptotic joint distribution…

统计理论 · 数学 2024-01-23 Zeqin Lin , Guangming Pan , Peng Zhao , Jia Zhou