Minimal Gerschgorin sets for partitioned matrices. III: Sharpness of boundaries and monotonicity as a function of the partition
type: Item
instance of: scholarly article
title: Minimal Gerschgorin sets for partitioned matrices. III: Sharpness of boundaries and monotonicity as a function of the partition
zbMATH Open document ID: 0857.15009
author: Richard S. Varga
author: Alan Krautstengl
publication date: 1997-03-11T00:00:00Z
full work available at URL: https://eudml.org/doc/119045
full work available at URL: vol.3.1995
review text: The authors use the affirmative solution of the spectral conjecture presented in part II [ibid. 3, 66-82 (1995; reviewed above)] to show that the general boundaries of the minimal Gerschgorin sets for partitioned matrices are sharp and these minimal Gerschgorin sets as a function of the partitionings are monotonic.
Mathematics Subject Classification ID: 15A42
zbMATH DE Number: 918312
zbMATH Keywords: sharpness of boundaries
zbMATH Keywords: monotonicity
zbMATH Keywords: spectral conjecture
zbMATH Keywords: minimal Gerschgorin sets
zbMATH Keywords: partitioned matrices
reviewed by: Prem Narain
MaRDI profile type: Publication
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published in: ETNA - Electronic Transactions on Numerical Analysis
description: scientific article; zbMATH DE number 918312