Browder essential approximate pseudospectrum and defect pseudospectrum on a Banach space

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Browder essential approximate pseudospectrum and defect pseudospectrum on a Banach space

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Title: Browder essential approximate pseudospectrum and defect pseudospectrum on a Banach space
Author: Ammar, Aymen; Jeribi, Aref; Mahfoudhi, Kamel
Abstract: In this paper, we introduce and study the Browder essential approximate pseudospectrum and the Browder essential defect pseudospectrum of bounded linear operators on a Banach space. Moreover, we characterize these spectra and will give some results concerning the stability of them under suitable perturbations.
URI: http://hdl.handle.net/10662/9840
Date: 2019


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