Invertibility conditions for block matrices and estimates for norms of inverse matrices
type: Item
instance of: scholarly article
title: Invertibility conditions for block matrices and estimates for norms of inverse matrices
zbMATH Open document ID: 1058.15003
published in: Rocky Mountain Journal of Mathematics
publication date: 2004-10-01T00:00:00Z
review text: The author derives a non-sigularity criterion for block matrices. Invertibility conditions which improve well-known results for matrices that are ``close'' to block triangular matrices are proposed. Finally an estimate for the norm of the inverse matrices is derived.
Mathematics Subject Classification ID: 15A09
Mathematics Subject Classification ID: 15A18
Mathematics Subject Classification ID: 15A60
zbMATH DE Number: 2104672
zbMATH Keywords: block matrices
zbMATH Keywords: invertibility conditions
zbMATH Keywords: block triangular matrices
zbMATH Keywords: norm
zbMATH Keywords: inverse matrices
author: Michael I. Gil'
reviewed by: Prem Narain
MaRDI profile type: Publication
full work available at URL: https://doi.org/10.1216/rmjm/1181075466
OpenAlex ID: W2046553309
DOI: 10.1216/RMJM/1181075466
description: scientific article; zbMATH DE number 2104672