Convexity and star-shapedness of matricial range

DOI10.1016/j.jfa.2018.03.018OpenAlexW2963297938MaRDI QIDQ1671387

Pan-Shun Lau, Chi-Kwong Li, Nung-Sing Sze, Yiu-Tung Poon

Publication date: 6 September 2018

Published in: Journal of Functional Analysis (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/1710.09555

zbMATH Keywords

bounded linear operatorshigher rank numerical rangejoint essential numerical rangejoint matricial range

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Several-variable operator theory (spectral, Fredholm, etc.) (47A13) Numerical range, numerical radius (47A12) Perturbation theory of linear operators (47A55)

Related Items (6)

The star-center of the quaternionic numerical range ⋮ Preservation of the joint essential matricial range ⋮ Generalized numerical ranges, dilation, and quantum error correction ⋮ Joint matricial range and joint congruence matricial range of operators ⋮ Joint numerical ranges and compressions of powers of operators ⋮ Higher rank matricial ranges and hybrid quantum error correction

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