A note on almost regular matrices
type: Item
instance of: scholarly article
title: A note on almost regular matrices
zbMATH Open document ID: 0839.05023
DOI: 10.1016/0024-3795(94)00307-Y
published in: Linear Algebra and its Applications
publication date: 1995-10-09T00:00:00Z
review text: A symmetric matrix \({\mathbf A}= [a_{ij}]\) of order \(n\), all the entries of which are nonnegative and all the row sums \(d_1,d_2,\dots, d_n\) of which are positive, is said to be almost regular if there is a positive number \(r\) such that \(d_i d_j= r^2\) if \(a_{ij}> 0\). This note gives necessary and sufficient conditions for almost regular matrices and discusses some related matters.
reviewed by: Wai-Kai Chen
Mathematics Subject Classification ID: 05B20
Mathematics Subject Classification ID: 05C50
zbMATH DE Number: 803732
zbMATH Keywords: symmetric matrix
zbMATH Keywords: almost regular matrices
author: Alan J. Hoffman
author: Philip Wolfe
author: Michael Hofmeister
MaRDI profile type: Publication
cites work: Q3907599
cites work: A Note on Almost Regular Graphs
description: scientific article; zbMATH DE number 803732