Elliptic numerical ranges of bordered matrices

DOI10.11650/twjm/1500406675zbMath1259.15035OpenAlexW4252924269MaRDI QIDQ439197

Kuo-Chih Hung, Mao-Ting Chien

Publication date: 1 August 2012

Published in: Taiwanese Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: http://journal.taiwanmathsoc.org.tw/index.php/TJM/article/view/2003

zbMATH Keywords

numerical rangeelliptic discmaximum eigenvaluebordered matrices

Mathematics Subject Classification ID

Eigenvalues, singular values, and eigenvectors (15A18) Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60)

Related Items (5)

Poncelet-Darboux, Kippenhahn, and Szegő: interactions between projective geometry, matrices and orthogonal polynomials ⋮ Zero-dilation index of a finite matrix ⋮ On some reciprocal matrices with elliptical components of their Kippenhahn curves ⋮ On the numerical range of some block matrices with scalar diagonal blocks ⋮ On some 4-by-4 matrices with bi-elliptical numerical ranges

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