Abstract
In this paper, we establish some new spectral properties of bounded operators acting in Banach spaces by means of the concept of quasi-compact operators. Furthermore, we discuss the incidence of some perturbation results on the description of some spectra.
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Charfi, S., Elleuch, A. & Walha, I. Spectral Theory Involving the Concept of Quasi-Compact Perturbations. Mediterr. J. Math. 17, 32 (2020). https://doi.org/10.1007/s00009-019-1468-x
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DOI: https://doi.org/10.1007/s00009-019-1468-x
Keywords
- Quasi-compact operators
- Fredholm spectrum
- left (resp. right) Fredholm spectrum
- Weyl spectrum
- left (resp. right) Weyl spectrum