Stability of essential approximate point spectrum and essential defect spectrum of linear operator

DOI10.2298/FIL1509983AzbMath1464.47003MaRDI QIDQ5278722

Mohammed Zerai Dhahri, Aymen Ammar, Aref Jeribi

Publication date: 19 July 2017

Published in: Filomat (Search for Journal in Brave)

zbMATH Keywords

measure of noncompactnesssemi-Fredholm operatorspolynomially perturbation operatorssssential spectra

Mathematics Subject Classification ID

Spectrum, resolvent (47A10) Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53) Measures of noncompactness and condensing mappings, (K)-set contractions, etc. (47H08)

This page was built for publication: Stability of essential approximate point spectrum and essential defect spectrum of linear operator