Matrices with defect index one

DOI10.7153/OAM-07-48zbMath1295.15014OpenAlexW2330957966MaRDI QIDQ2873572

Cheng-Chun Chang, Hwa-Long Gau, Ya-Shu Wang, Szu-Chieh Wu, Ya-Ting Yeh

Publication date: 24 January 2014

Published in: Operators and Matrices (Search for Journal in Brave)

Full work available at URL: http://files.ele-math.com/articles/oam-07-48.pdf

zbMATH Keywords

numerical rangepolar decompositionunitary equivalencedefect index\(\mathcal S_n\)-matrix\(\mathcal S_n^{-1}\)-matrix

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60)

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Crawford numbers of companion matrices ⋮ On the numerical range of some block matrices with scalar diagonal blocks

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