The Numerical Range of 2-Dimensional Krein Space Operators

DOI10.4153/CMB-2008-011-1zbMath1141.15025OpenAlexW2121746902MaRDI QIDQ5453652

Natália Bebiano, João da Providência, Hiroshi Nakazato

Publication date: 3 April 2008

Published in: Canadian Mathematical Bulletin (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.4153/cmb-2008-011-1

zbMATH Keywords

simple Lie groupindefinite inner product space\(J\)-tracial numerical range2-dimensional Krein space operators

Mathematics Subject Classification ID

Norms of matrices, numerical range, applications of functional analysis to matrix theory (15A60) Numerical range, numerical radius (47A12) Quadratic and bilinear forms, inner products (15A63) Linear operators on spaces with an indefinite metric (47B50)

Related Items (3)

Ratio numerical ranges of operators ⋮ The \(J\)-numerical range of a \(J\)-Hermitian matrix and related inequalities ⋮ On the Courant--Fischer theory for Krein spaces

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