Some mapping theorems for the numerical range
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Publication:5519465
DOI10.3792/pja/1195522286zbMath0143.36702OpenAlexW1977960169MaRDI QIDQ5519465
Publication date: 1965
Published in: Proceedings of the Japan Academy, Series A, Mathematical Sciences (Search for Journal in Brave)
Full work available at URL: https://doi.org/10.3792/pja/1195522286
Related Items (21)
A characterization of spectraloid operators and its generalization ⋮ The structure of the core of a numerical contraction ⋮ The Numerical Range is a $(1+\sqrt{2})$-Spectral Set ⋮ Inequalities involving the numerical radius ⋮ The numerical radius and specttural matrices ⋮ Quasi-sectorial contractions ⋮ Averages of operators and their positivity ⋮ Operator-norm approximation of semigroups by quasi-sectorial contractions ⋮ Fields of values and iterative methods ⋮ Fields of values and the ADI method for non-normal matrices ⋮ Numerical ranges of the powers of an operator ⋮ A skew normal dilation on the numerical range of an operator ⋮ Numerical range and quasi-sectorial contractions ⋮ Square roots with positive definite Hermitian part ⋮ Numerical range and accretivity of operator products ⋮ Mosaics, principal functions, and mean motion in von Neumann algebras ⋮ On mapping theorems for numerical range ⋮ Numerical radius inequality for \(C_0\) contractions ⋮ On the square roots of strictly quasiaccretive complex matrices ⋮ Roots of C*-algebra elements under numerical range condition ⋮ Convex domains and K-spectral sets
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