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For real symmetric matrices that are accessible only through matrix vector products, we present Monte Carlo estimators for computing the diagonal elements. Our probabilistic bounds for normwise absolute and relative errors apply to Monte…

数值分析 · 数学 2022-03-18 Eric Hallman , Ilse C. F. Ipsen , Arvind Saibaba

We propose a simple generalization of the matrix resolvent to a resolvent for real symmetric tensors $T\in \otimes^p \mathbb{R}^N$ of order $p\ge 3$. The tensor resolvent yields an integral representation for a class of tensor invariants…

数学物理 · 物理学 2020-04-15 Razvan Gurau

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

The quantum eigenvalue problem arises in the study of the geometric measure of the quantum entanglement. In this paper, we convert the quantum eigenvalue problem to the Z-eigenvalue problem of a real symmetric tensor. In this way, the…

谱理论 · 数学 2012-05-08 Xinzhen Zhang , Liqun Qi

We calculate the average of two characteristic polynomials for the real Ginibre ensemble of asymmetric random matrices, and its chiral counterpart. Considered as quadratic forms they determine a skew-symmetric kernel from which all complex…

数学物理 · 物理学 2009-11-10 G. Akemann , M. J. Phillips , H. -J. Sommers

We show that the absolute value of the determinant of a matrix with random independent (but not necessarily iid) entries is strongly concentrated around its mean. As an application, we show that the Godsil-Gutman and Barvinok estimators for…

概率论 · 数学 2015-07-16 Kevin P. Costello , Van Vu

In this paper we consider Wigner random matrices -- symmetric n by n random matrices whose entries are independent identically distributed real random variables. We prove that the probability distribution of one or several eigenvalues close…

数学物理 · 物理学 2017-11-29 Anastasia A. Ruzmaikina

We consider the real eigenvalues of an $(N \times N)$ real elliptic Ginibre matrix whose entries are correlated through a non-Hermiticity parameter $\tau_N\in [0,1]$. In the almost-Hermitian regime where $1-\tau_N=\Theta(N^{-1})$, we obtain…

概率论 · 数学 2022-03-22 Sung-Soo Byun , Nam-Gyu Kang , Ji Oon Lee , Jinyeop Lee

Let $X_1,\ldots,X_n$ be a standard normal sample in $\mathbb R^d$. We compute exactly the expected volume of the Gaussian polytope $\mathrm{conv}[X_1,\ldots,X_n]$, the symmetric Gaussian polytope $\mathrm{conv}[\pm X_1,\ldots,\pm X_n]$, and…

概率论 · 数学 2017-06-27 Zakhar Kabluchko , Dmitry Zaporozhets

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

Real-world signals typically span across multiple dimensions, that is, they naturally reside on multi-way data structures referred to as tensors. In contrast to standard ``flat-view'' multivariate matrix models which are agnostic to data…

信号处理 · 电气工程与系统科学 2019-12-04 Bruno Scalzo Dees , Anh-Huy Phan , Danilo P. Mandic

We compute the expected value of various quantities related to the biparametric singularities of a pair of smooth centered Gaussian random fields on an n-dimensional compact manifold, such as the lengths of the critical curves and contours…

概率论 · 数学 2022-02-17 Mishal Assif P K

We show that if a real trigonometric polynomial has few real roots, then the trigonometric polynomial obtained by writing the coefficients in reverse order must have many real roots. This is used to show that a class of random trigonometric…

概率论 · 数学 2008-12-10 J. Brian Conrey , David W. Farmer , Özlem Imamoglu

We present some new results on the joint distribution of an arbitrary subset of the ordered eigenvalues of complex Wishart, double Wishart, and Gaussian hermitian random matrices of finite dimensions, using a tensor pseudo-determinant…

统计理论 · 数学 2020-01-03 Marco Chiani , Alberto Zanella

Quantum field theories can be applied to compute various statistical properties of random tensors. In particular signed distributions of tensor eigenvalues/vectors are the easiest, which can be computed as partition functions of four-fermi…

高能物理 - 理论 · 物理学 2024-03-27 Max Regalado Kloos , Naoki Sasakura

We describe an algorithm to compute the extremal eigenvalues and corresponding eigenvectors of a symmetric matrix by solving a sequence of Quadratic Binary Optimization problems. This algorithm is robust across many different classes of…

新兴技术 · 计算机科学 2022-10-12 Benjamin Krakoff , Susan M. Mniszewski , Christian F. A. Negre

Let $Q_n(x)=\sum_{i=0}^{n} A_{i}x^{i}$ be a random polynomial where the coefficients $A_0,A_1,... $ form a sequence of centered Gaussian random variables. Moreover, assume that the increments $\Delta_j=A_j-A_{j-1}$, $j=0,1,2,...$ are…

概率论 · 数学 2007-06-13 S. Rezakhah , S. Shemehsavar

This short note studies the fluctuations of the largest eigenvalue of symmetric random matrices with correlated Gaussian entries having positive mean. Under the assumption that the covariance kernel is absolutely summable, it is proved that…

概率论 · 数学 2024-10-18 Arijit Chakrabarty , Rajat Subhra Hazra , Moumanti Podder

In this paper, we consider the problem of deriving new eigenvalue distributions of real-valued Wishart matrices that arises in many scientific and engineering applications. The distributions are derived using the tools from the theory of…

信息论 · 计算机科学 2015-07-29 Oliver James , Heung-No Lee

Number theorists have studied extensively the connections between the distribution of zeros of the Riemann $\zeta$-function, and of some generalizations, with the statistics of the eigenvalues of large random matrices. It is interesting to…

数学物理 · 物理学 2009-10-31 E. Brezin , S. Hikami