Semi-Fredholm and Semi-Browder Spectra For C₀-Quasi-Semigroups

2018/12/18 by Tajmouati, Abdelaziz, Zahouan, Youness
#46A #47A #FOS: Mathematics #Spectral Theory (math.SP)

paper · doi:10.48550/arxiv.1812.07278

Abstract

In this paper, we describe the different spectra of the C₀-quasi-semigroups by the spectra of their generators. Specially, essential ascent and descent,Drazin invertible, upper and lower semi-Fredholm and semi-Browder spectra.

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