Semi-Fredholm and Semi-Browder Spectra For $C_0$-Quasi-Semigroups

Abdelaziz Tajmouati; Youness Zahouan

arxiv: 1812.07278 · v1 · pith:6EHFOTP4new · submitted 2018-12-18 · 🧮 math.SP

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

Abdelaziz Tajmouati , Youness Zahouan This is my paper

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keywords spectraquasi-semigroupssemi-browdersemi-fredholmascentdescentdescribedifferent

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In this paper, we describe the different spectra of the $C_0$-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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Semi-Fredholm and Semi-Browder Spectra For C₀-Quasi-Semigroups

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