Some results on Fredholm and semi-Fredholm perturbations

DOI10.1007/s40065-014-0105-6zbMath1342.47020OpenAlexW2080208829WikidataQ59321119 ScholiaQ59321119MaRDI QIDQ2254919

Maher Mnif, Afif Ben Amar, Aref Jeribi

Publication date: 6 February 2015

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

Full work available at URL: https://doi.org/10.1007/s40065-014-0105-6

zbMATH Keywords

essential spectrasemi-Fredholm operators

Mathematics Subject Classification ID

Perturbation theory of linear operators (47A55) (Semi-) Fredholm operators; index theories (47A53) Index theory and related fixed-point theorems on manifolds (58J20) Fredholm structures on infinite-dimensional manifolds (58B15)

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