Browder essential approximate pseudospectrum and defect pseudospectrum on a Banach space
doi:10.17398/2605-5686.34.1.29
Keywords:
Pseudospectrum, Browder essential approximate pseudospectrum, Browder essential defect pseudospectrumAbstract
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.
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