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math.SP2018
Riesz Decomposition Relative to C*-Algebra Homomorphisms
Abdelaziz Tajmouati, Abdeslam El Bakkali, Safae Alaoui Chrifi
The aim of the present work is to study the Riesz decomposition relative to a C*-algebra homomorphism T : A --> B. We prove that under some conditions on T, T-Riesz elements can be…
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.…