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The determinants of $\{\pm 1\}$-matrices are calculated by via the oriented hypergraphic Laplacian and summing over an incidence generalization of vertex cycle-covers. These cycle-covers are signed and partitioned into families based on…

组合数学 · 数学 2021-07-01 Lucas J. Rusnak , Josephine Reynes , Russell Li , Eric Yan , Justin Yu

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 and lower bounds on the number of distinct irreducible characteristic polynomials which correspond to…

数论 · 数学 2025-02-18 László Mérai , Igor E. Shparlinski

The generalized Lax conjecture asserts that each hyperbolicity cone is a linear slice of the cone of positive semidefinite matrices. We prove the conjecture for a multivariate generalization of the matching polynomial. This is further…

组合数学 · 数学 2016-11-21 Nima Amini

This work builds on Varchenko et al's introduction of bilinear forms for hyperplane arrangements, where the determinant of the associated matrices factorizes into simple components. While one of the determinant formula developed by…

组合数学 · 数学 2024-11-20 Winfried Hochstättler , Sophia Keip

The Hilbert function of a module over a positively graded algebra is of quasi-polynomial type (Hilbert--Serre). We derive an upper bound for its grade, i.e. the index from which on its coefficients are constant. As an application, we give a…

交换代数 · 数学 2007-05-23 Winfried Bruns , Bogdan Ichim

We study semigroup algebras associated to lattice polytopes. We begin by generalizing and refining work of Hochster, and describe the volume maps of these algebras, that is, their fundamental classes, in terms of Parseval-Rayleigh…

We present a conjecture for expressing the coefficients in the Cayley-Hamilton theorem for supermatrices in terms of supertraces. The conjecture is tested for several supermatrix dimensions and unique results are obtained. Generating…

数学物理 · 物理学 2010-03-22 Sotirios Bonanos , Kiyoshi Kamimura

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

The problem of expressing a specific polynomial as the determinant of a square matrix of affine-linear forms arises from algebraic geometry, optimisation, complexity theory, and scientific computing. Motivated by recent developments in this…

This paper considers an idempotent and symmetrical algebraic structure as well as some closely related concept. A special notion of determinant is introduced and a Cramer formula is derived for a class of limit systems derived from the…

组合数学 · 数学 2020-10-09 Walter Briec

We define and study "semimatroids", a class of objects which abstracts the dependence properties of an affine hyperplane arrangement. We show that geometric semilattices are precisely the posets of flats of semimatroids. We define and…

组合数学 · 数学 2007-05-23 Federico Ardila

In this work, the determinants of matrices constructed by evaluating homogeneous bivariate polynomials at pairs of vectors are investigated. For a polynomial $p(x,y)=\sum\limits_{i=0}^k \alpha_i x^{k-i}y^i$, an explicit factorization of the…

环与代数 · 数学 2026-01-27 Somphong Jitman , Wannarut Rungrottheera

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 a new upper bound on the number of matrices from $\mathcal{M}_n(\mathbb Z; H)$ with a given characteristic…

数论 · 数学 2024-09-05 Philipp Habegger , Alina Ostafe , Igor E. Shparlinski

In this framework, the extremal case corresponds to the tightest nontrivial relaxation in this hierarchy, in which every proper principal submatrix is constrained to be positive semidefinite, while the global positive semidefiniteness…

最优化与控制 · 数学 2026-05-12 Shaun Fallat , Samir Mondal , Hristo Sendov

We generalize linear superalgebra to higher gradings and commutation factors, given by arbitrary abelian groups and bicharacters. Our central tool is an extension, to monoidal categories of modules, of the Nekludova-Scheunert faithful…

环与代数 · 数学 2014-03-31 Tiffany Covolo , Jean-Philippe Michel

The values of the determinant of Vandermonde matrices with real elements are analyzed both visually and analytically over the unit sphere in various dimensions. For three dimensions some generalized Vandermonde matrices are analyzed…

经典分析与常微分方程 · 数学 2013-12-24 Karl Lundengård , Jonas Österberg , Sergei Silvestrov

We evaluate the determinant of a matrix whose entries are elliptic hypergeometric terms and whose form is reminiscent of Sylvester matrices. A hypergeometric determinant evaluation of a matrix of this type has appeared in the context of…

经典分析与常微分方程 · 数学 2018-05-31 Gaurav Bhatnagar , Christian Krattenthaler

The purpose of this paper is to compute asymptotically Hankel determinants for weights that are supported in a semi-infinite interval.The main idea is to reduce the problem to determinants of other operators whose determinant asymptotics…

经典分析与常微分方程 · 数学 2007-05-23 Estelle L. Basor , Yang Chen , Harold Widom

We calculate determinants of weighted sums of reflections and of (nested) commutators of reflections. The results obtained generalize the Kirchhoff's matrix-tree theorem and the matrix-3-hypertree theorem by G.\,Massbaum and A.\,Vaintrob.

组合数学 · 数学 2011-09-30 Yurii Burman , Andrey Ploskonosov , Anastasia Trofimova

In this article, a new formula for computing Cayley's first hyperdeterminant in terms of the Levi-Civita symbol is given. It is then shown that this formula can be used to compute the hyperdeterminant of symmetric hypermatrices in…

量子物理 · 物理学 2026-03-04 Isaac Dobes