Tight sign-central matrices
type: Item
instance of: scholarly article
title: Tight sign-central matrices
zbMATH Open document ID: 1029.15022
DOI: 10.1016/S0024-3795(03)00460-9
author: Suk-Geun Hwang
author: Ik-Pyo Kim
author: Si-Ju Kim
author: Xiao-Dong Zhang
published in: Linear Algebra and its Applications
publication date: 2003-09-09T00:00:00Z
review text: It is proved that all tight sign-central matrices are minimal sign-central. The lower bound of the number of columns of a tight sign-central matrix with no zero rows is determined in terms of the number of rows. The characterization of the equality case is discussed.
Mathematics Subject Classification ID: 15B57
zbMATH DE Number: 1978115
zbMATH Keywords: sign pattern matrix
zbMATH Keywords: sign-central matrix
zbMATH Keywords: tight sign-central matrix
MaRDI profile type: Publication
cites work: Sign-central matrices
cites work: Q4858123
cites work: Q5202846
cites work: Tautologies and positive solvability of linear homogeneous systems
description: scientific article; zbMATH DE number 1978115