On the essential spectrum of the diagonal of an operator

DOI10.1080/03081087.2018.1540533OpenAlexW2898934581WikidataQ114641355 ScholiaQ114641355MaRDI QIDQ4965916

Ezzeddine Chafai, Mohamed Boumazgour

Publication date: 18 March 2021

Published in: Linear and Multilinear Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1080/03081087.2018.1540533

zbMATH Keywords

spectruminvariant subspaceFredholm operatoressential spectrumBrowder spectrum

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Commutators, derivations, elementary operators, etc. (47B47) (Semi-) Fredholm operators; index theories (47A53)

Cites Work

• Three-space theorem for semi-Fredholmness
• Ascent, descent, nullity and defect, a note on a paper by A.E. Taylor
• Drazin invertibility of the diagonal of an operator
• On the Spectra of the Restrictions of an Operator
• On Analytically Invariant Subspaces and Spectra
• Generalized Drazin inverse of restrictions of bounded linear operators
• Spectral theory of linear operators and spectral systems in Banach algebras
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