On numerical ranges and roots.

DOI10.1016/S0022-247X(03)00158-6zbMath1039.47003OpenAlexW1990307743MaRDI QIDQ1399397

Chi-Kwong Li, Ilya M. Spitkovskij, Leiba Rodman

Publication date: 30 July 2003

Published in: Journal of Mathematical Analysis and Applications (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1016/s0022-247x(03)00158-6

zbMATH Keywords

numerical rangerootHermitian Banach algebra

Mathematics Subject Classification ID

Numerical range, numerical radius (47A12)

Related Items (7)

Roots in operator and Banach algebras ⋮ A matrix decomposition and its applications ⋮ Escaping a Neighborhood Along a Prescribed Sequence in Lie Groups and Banach Algebras ⋮ On positivity and roots in operator algebras ⋮ An example on ordered Banach algebras ⋮ \(L^p\)-operator algebras with approximate identities. I ⋮ Roots of C*-algebra elements under numerical range condition

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