B-Fredholm properties of closed invertible operators

DOI10.1007/s00009-016-0738-0zbMath1427.47003OpenAlexW2413452167MaRDI QIDQ346891

Mohammed Berkani, Nedra Moalla

Publication date: 30 November 2016

Published in: Mediterranean Journal of Mathematics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1007/s00009-016-0738-0

zbMATH Keywords

spectrumclosed semi-B-Fredholm operatorsWeyl theorem

Mathematics Subject Classification ID

Hermitian and normal operators (spectral measures, functional calculus, etc.) (47B15) Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05)

Related Items

Weyl type theorems for unbounded class-\(\mathcal {A}\) operators ⋮ A characterization of unbounded generalized meromorphic operators ⋮ Stability of essential B-spectra of unbounded linear operators and applications ⋮ Characterization of B-Fredholm quotient operator with application to strict quasi-normal contractions ⋮ Stability of some essential B-spectra of pencil operators and application ⋮ On the B-discrete spectrum

Cites Work

• Unnamed Item
• Unnamed Item
• Unnamed Item
• On the B-Fredholm alternative
• On a class of quasi-Fredholm operators
• Ascent, descent, nullity and defect, a note on a paper by A.E. Taylor
• Spectral analysis using ascent, descent, nullity and defect
• On semi B-Fredholm operators
• Index of B-Fredholm operators and generalization of a Weyl theorem
• Closed operators affiliated with a Banach algebra of operators
• The stability radius of a quasi-Fredholm operator
• On the axiomatic theory of spectrum II