Essential spectra of some matrix operators by means of measures of weak noncompactness

DOI10.7153/OAM-08-11zbMath1307.47003OpenAlexW2314329144MaRDI QIDQ5416617

Boulbeba Abdelmoumen

Publication date: 14 May 2014

Published in: Operators and Matrices (Search for Journal in Brave)

Full work available at URL: http://files.ele-math.com/articles/oam-08-11.pdf

zbMATH Keywords

Fredholm operatoressential spectrumright (left) inverse

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) (Semi-) Fredholm operators; index theories (47A53) Measures of noncompactness and condensing mappings, (K)-set contractions, etc. (47H08)

Related Items (1)

Perturbation theory, M-essential spectra of operator matrices

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