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We consider the set $\mathcal M_n(\mathbb Z; H)$ of $n\times n$-matrices with integer elements of size at most $H$ and obtain upper bounds on the number of matrices from $\mathcal M_n(\mathbb Z; H)$, for which the characteristic polynomial…

数论 · 数学 2026-03-26 Alina Ostafe , Igor E. Shparlinski

In this paper we characterize the nonnegative irreducible tridiagonal matrices and their permutations, using certain entries in their primitive idempotents. Our main result is summarized as follows. Let $d$ denote a nonnegative integer. Let…

组合数学 · 数学 2010-10-08 Kazumasa Nomura , Paul Terwilliger

We generalize the concept of the symmetric hyperdeterminants for symmetric tensors to the E-determinants for general tensors. We show that the E-determinant inherits many properties of the determinant of a matrix. These properties include:…

数值分析 · 数学 2015-03-13 Shenglong Hu , Zheng-Hai Huang , Chen Ling , Liqun Qi

We propose a nonconvex estimator for joint multivariate regression and precision matrix estimation in the high dimensional regime, under sparsity constraints. A gradient descent algorithm with hard thresholding is developed to solve the…

机器学习 · 统计学 2016-06-03 Jinghui Chen , Quanquan Gu

We study the convex relaxation of a polynomial optimization problem, maximizing a product of linear forms over the complex sphere. We show that this convex program is also a relaxation of the permanent of Hermitian positive semidefinite…

最优化与控制 · 数学 2021-01-21 Chenyang Yuan , Pablo A. Parrilo

In the Nonnegative Matrix Factorization (NMF) problem we are given an $n \times m$ nonnegative matrix $M$ and an integer $r > 0$. Our goal is to express $M$ as $A W$ where $A$ and $W$ are nonnegative matrices of size $n \times r$ and $r…

数据结构与算法 · 计算机科学 2011-11-04 Sanjeev Arora , Rong Ge , Ravi Kannan , Ankur Moitra

In this paper we study the problem of deterministic factorization of sparse polynomials. We show that if $f \in \mathbb{F}[x_{1},x_{2},\ldots ,x_{n}]$ is a polynomial with $s$ monomials, with individual degrees of its variables bounded by…

交换代数 · 数学 2018-08-22 Vishwas Bhargava , Shubhangi Saraf , Ilya Volkovich

A real symmetric matrix (resp., tensor) is said to be copositive if the associated quadratic (resp., homogeneous) form is greater than or equal to zero over the nonnegative orthant. The problem of detecting their copositivity is NP-hard.…

最优化与控制 · 数学 2017-11-13 Jiawang Nie , Zi Yang , Xinzhen Zhang

This paper studies symmetric tensor decompositions. For symmetric tensors, there exist linear relations of recursive patterns among their entries. Such a relation can be represented by a polynomial, which is called a generating polynomial.…

数值分析 · 数学 2015-10-06 Jiawang Nie

We consider the following natural question. Given a matrix $A$ with i.i.d. random entries, what are the moments of the determinant of $A$? In other words, what is $\mathbb{E}[\det(A)^k]$? While there is a general expression for…

组合数学 · 数学 2025-07-08 Dominik Beck , Zelin Lv , Aaron Potechin

We introduce a novel concept of rank for subsets of finite metric spaces E^n_q (the set of all n-dimensional vectors over an alphabet of size q) equipped with the Hamming distance, where the rank R(A) of a subset A is defined as the number…

离散数学 · 计算机科学 2025-06-17 Jamolidin K. Abdurakhmanov

This paper develops a unified analytical framework for determinant identities under finite-rank perturbations of square matrices that remains valid without invertibility assumptions. In contrast to classical inverse-based formulations, the…

最优化与控制 · 数学 2026-04-07 Robert Vrabel

Resolvent compositions were recently introduced as monotonicity-preserving operations that combine a set-valued monotone operator and a bounded linear operator. They generalize in particular the notion of a resolvent average. We analyze the…

泛函分析 · 数学 2026-01-30 Diego J. Cornejo

Let K be a field and let M_n(K) denote the space of n x n matrices with entries in K. Let M be a subspace of M_n(K) of dimension d with the property that there are elements in M with non-zero determinant. Given a basis of M, we define the…

环与代数 · 数学 2021-12-15 Rod Gow

In the total matching problem, one is given a graph $G$ with weights on the vertices and edges. The goal is to find a maximum weight set of vertices and edges that is the non-incident union of a stable set and a matching. We consider the…

组合数学 · 数学 2024-01-01 Luca Ferrarini , Samuel Fiorini , Stefan Kober , Yelena Yuditsky

A matrix is called Bohemian if its entries are sampled from a finite set of integers. We determine the maximum absolute determinant of upper Hessenberg Bohemian Matrices for which the subdiagonal entries are fixed to be $1$ and upper…

符号计算 · 计算机科学 2020-05-12 Jonathan P. Keating , Ahmet Abdullah Keleş

We present an algorithm computing the determinant of an integer matrix A. The algorithm is introspective in the sense that it uses several distinct algorithms that run in a concurrent manner. During the course of the algorithm partial…

符号计算 · 计算机科学 2008-09-04 Jean-Guillaume Dumas , Anna Urbanska

The Jack polynomials with prescribed symmetry are obtained from the nonsymmetric polynomials via the operations of symmetrization, antisymmetrization and normalization. After dividing out the corresponding antisymmetric polynomial of…

量子代数 · 数学 2009-11-07 P. J. Forrester , D. S. McAnally , Y. Nikoyalevsky

A commutative associative algebra A with an identity over the field of real numbers which has a basis, where all elements are invertible, is considered in the work. Moreover, among matrixes consisting of the structure constants of A, there…

复变函数 · 数学 2020-09-29 T. M. Osipchuk

In this paper, we propose and analyze a set of fully non-stationary Anderson acceleration algorithms with dynamic window sizes and optimized damping. Although Anderson acceleration (AA) has been used for decades to speed up nonlinear…

数值分析 · 数学 2022-03-29 Kewang Chen , Cornelis Vuik
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