On the B-Fredholm alternative

DOI10.1007/s00009-013-0260-6zbMath1365.47002OpenAlexW2101724979MaRDI QIDQ358256

Mohammed Berkani

Publication date: 16 August 2013

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

Full work available at URL: https://doi.org/10.1007/s00009-013-0260-6

zbMATH Keywords

Drazin inverseindexFredholm alternativeunbounded B-Fredholm operators

Mathematics Subject Classification ID

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

Related Items (8)

B-Fredholm properties of closed invertible operators ⋮ A characterization of unbounded generalized meromorphic operators ⋮ B-essential spectra of operators matrix block \(3\times 3\) applied to a radiative transfer equations in a channel ⋮ Stability of essential B-spectra of unbounded linear operators and applications ⋮ Quasi-Fredholm and semi-B-Fredholm linear relations ⋮ 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

• On a class of quasi-Fredholm operators
• Perturbation theory for linear operators.
• B-Weyl spectrum and poles of the resolvent
• Theorems on ascent, descent, nullity and defect of linear operators
• Ascent, descent, nullity and defect, a note on a paper by A.E. Taylor
• Index of B-Fredholm operators and generalization of a Weyl theorem
• UNBOUNDED B-FREDHOLM OPERATORS ON HILBERT SPACES
• On the axiomatic theory of spectrum II
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