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math.SP2018
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…
math.SP2018
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.…