Notes on \(\omega\)- and \(\tau\)-matrices
type: Item
instance of: scholarly article
title: Notes on \(\omega\)- and \(\tau\)-matrices
zbMATH Open document ID: 0543.15014
DOI: 10.1016/0024-3795(84)90210-6
author: Daniel Hershkowitz
author: A. Berman
published in: Linear Algebra and its Applications
publication date: 1984-01-01T00:00:00Z
review text: The question whether an \(\omega\)-matrix with positive leading principal minors is a \(\tau\)-matrix is answered negatively. For some conjectures on the localization of the eigenvalues of \(\omega\)- and \(\tau\)-matrices in the complex plane, some special cases are discussed. Also some further open questions are posed.
Mathematics Subject Classification ID: 15A42
Mathematics Subject Classification ID: 15B48
zbMATH DE Number: 3863384
zbMATH Keywords: omega matrix
zbMATH Keywords: tau matrix
zbMATH Keywords: P-matrices
zbMATH Keywords: stability
zbMATH Keywords: weakly signsymmetric matrices
zbMATH Keywords: Fisher-Hadamard inequalities
reviewed by: Volker Mehrmann
MaRDI profile type: Publication
full work available at URL: 0024-3795(84)90210-6
OpenAlex ID: W2023869975
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description: scientific article; zbMATH DE number 3863384