3 papers
Spectral Inclusions Between C0-Quasi-Semigroups and Their Generators
Abdelaziz Tajmouati, Youness Zahouan, Mohamed Ahmed Ould Mohamed Baba
In this paper, we show a spectral inclusion of a different spectra of a C0-quasi-semigroup and its generator and precisely for ordinary, point, approximate point, residual, essenti…
Quasi-fredholm and saphar spectrums for the α-times integrated semigroups
Abdelaziz Tajmouati, Abdeslam El Bakkali, Mohamed Ahmed Mohamed Baba +1
We continue to study -times integrated semigroups. Essentially, we characterize the different spectrums of -times integrated semigroups by the spectrums of their generators.…
Semi-Fredholm and semi-Browder spectrums for the -times integrated semigroups
Abdelaziz Tajmouati, Abdeslam El Bakkali, Mohamed Baba Mohamed Ahmed +1
In this paper, we describe the different spectrums of the α-times integrated semigroups by the spectrums of their generators. Specially, essential ascent and descent, upper and low…