Abstract
In this paper, we devote our research to the B-essential spectra of the sum of two bounded linear operators defined on a Banach space by means of the B-essential spectra of each of the two operators where their products are finite rank operators.
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Abdmouleh, F. B-essential and B-Weyl spectra of sum of two commuting bounded operators. Indian J Pure Appl Math 47, 23–31 (2016). https://doi.org/10.1007/s13226-015-0167-y
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DOI: https://doi.org/10.1007/s13226-015-0167-y