The S-Jeribi essential spectrum

C. Belabbaci

doi:10.37863/umzh.v73i3.163

C. Belabbaci Laboratory Pure and Appl. Math., Dep. Math., Univ. Laghouat, Algeria

DOI: https://doi.org/10.37863/umzh.v73i3.163

Ключові слова: S-essential spectra, Jeribi essential spectrum, Fredholm operators

Анотація

УДК 517.9

Суттєвий $S$-спектр Джерiбi

Вивчено властивостi суттєвого S-спектра Джерiбi для лiнiйних операторiв у просторi Банаха та отримано деякi вiдповiднi результати. Зокрема, сформульовано критерiї збiгу цих спектрiв для двох лiнiйних операторiв та встановлено зв’язок мiж цим типом спектру та вiдомим суттєвим S-спектром Шехтера.

Посилання

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