Essentially regular operators in Banach spaces

DOI10.1007/BF02844478zbMath0890.47009MaRDI QIDQ1360193

Mohammed Berkani, Abdelmalek Ouahab

Publication date: 8 July 1998

Published in: Rendiconti del Circolo Matemàtico di Palermo. Serie II (Search for Journal in Brave)

zbMATH Keywords

commonspectral mapping theoremessentially regular operatoressentially regular spectrum

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53)

Cites Work

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• Perturbation theory for nullity, deficiency and other quantities of linear operators
• Les opérateurs quasi Fredholm: Une généralisation des opérateurs semi Fredholm
• Uniform ascent and descent of bounded operators
• Relatively regular operators and a spectral mapping theorem
• Mapping Properties of Relatively Regular Operators
• Generalized spectrum and commuting compact perturbations
• Théorème de l’application spectrale pour le spectre essentiel quasi-Fredholm
• The Asymptotic Behavior of the Reduced Minimum Modulus of a Fredholm Operator

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