A NOTE ON OPERATORS CONSISTENT IN INVERTIBILITY

DOI10.22190/FUMI1903429KzbMath1474.47002OpenAlexW2995163316MaRDI QIDQ3388583

Marko Kostadinov

Publication date: 6 May 2021

Published in: Facta Universitatis, Series: Mathematics and Informatics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.22190/fumi1903429k

zbMATH Keywords

Banach algebraHilbert spaceinvertibilitysemiregularity

Mathematics Subject Classification ID

General (adjoints, conjugates, products, inverses, domains, ranges, etc.) (47A05) Operators on Hilbert spaces (general) (47B02)

Cites Work

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• Fredholm consistency of upper-triangular operator matrices
• Consistent invertibility and Weyl's theorem
• Fredholm theory relative to a Banach algebra homomorphism
• Consistency in invertibility and Fredholmness of operator matrices
• Some results on Fredholmness and boundedness below of an upper triangular operator matrix
• Axiomatic theory of spectrum III: semiregularities
• Spectrum of the Products of Operators and Compact Perturbations

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