Numerical ranges and compressions of S_n-matrices

DOI10.7153/oam-07-28zbMath1278.15026OpenAlexW2006337780MaRDI QIDQ2852263

Pei Yuan Wu, Hwa-Long Gau

Publication date: 8 October 2013

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

Full work available at URL: http://files.ele-math.com/articles/oam-07-28.pdf

zbMATH Keywords

numerical rangecompression\(S_n\)-matrixunitary dilation

Mathematics Subject Classification ID

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

Related Items (11)

The Gau-Wu number for \(4 \times 4\) and select arrowhead matrices ⋮ Unnamed Item ⋮ Poncelet's theorem, paraorthogonal polynomials and the numerical range of compressed multiplication operators ⋮ Diagonals and numerical ranges of weighted shift matrices ⋮ Diagonals and numerical ranges of direct sums of matrices ⋮ On the Gau-Wu number for some classes of matrices ⋮ Unnamed Item ⋮ Gau-Wu numbers of nonnegative matrices ⋮ Extremality of numerical radii of tensor products of matrices ⋮ Singularities of base polynomials and Gau-Wu numbers ⋮ A note on the maximal numerical range

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