Intersections of several disks of the Riemann sphere as \(K\)-spectral sets

DOI10.3934/cpaa.2009.8.37zbMath1169.47008arXiv0807.3136OpenAlexW2963629284MaRDI QIDQ2518223

Michel Crouzeix, Bernhard Beckermann, Catalin Badea

Publication date: 15 January 2009

Published in: Communications on Pure and Applied Analysis (Search for Journal in Brave)

Full work available at URL: https://arxiv.org/abs/0807.3136

zbMATH Keywords

spectral setnormal dilationcomplete \(K\)-spectral set

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Dilations, extensions, compressions of linear operators (47A20) Spectral sets of linear operators (47A25)

Related Items (9)

Infinite-dimensional features of matrices and pseudospectra ⋮ Rational dilation problems associated with constrained algebras ⋮ A note on a spectral constant associated with an annulus ⋮ Lemniscates and \(K\)-spectral sets ⋮ \(H^{\infty}\) functional calculus and square function estimates for Ritt operators ⋮ Operator algebras of functions ⋮ Some Constants Related to Numerical Ranges ⋮ Spectral Sets: Numerical Range and Beyond ⋮ Tests for complete \(K\)-spectral sets

This page was built for publication: Intersections of several disks of the Riemann sphere as \(K\)-spectral sets