The S-Jeribi essential spectrum. (English) Zbl 1495.47012
Ukr. Math. J. 73, No. 3, 359-366 (2021) and Ukr. Mat. Zh. 73, No. 3, 308-313 (2021).
Summary: We study some properties and results on the S-Jeribi essential spectrum of linear bounded operators in a Banach space. In particular, we give some criteria for the coincidence of this spectrum for two linear operators and the relationship between this type of spectrum and the well-known S-Schechter essential spectrum.
References:
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