Extended spectrum of the Aluthge transformation

DOI10.11568/kjm.2021.29.3.511OpenAlexW3203824473MaRDI QIDQ5095734

Guemoula Asma, Abdelouahab Mansour

Publication date: 10 August 2022

Full work available at URL: https://doi.org/10.11568/kjm.2021.29.3.511

zbMATH Keywords

self-adjoint operatorextended spectruminvertible operatorAluthge transformationDuggal transformation

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Eigenvalue problems for linear operators (47A75) Spectral sets of linear operators (47A25) Transformers, preservers (linear operators on spaces of linear operators) (47B49)

Cites Work

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• A note on $p$-hyponormal operators
• On the extended spectrum of some quasinormal operators
• On numerical range and numerical radius of convex function operators
• On numerical range of the Aluthge transformation

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