Quasi-fredholm and saphar spectrums for the {\alpha}-times integrated semigroups

Abdelaziz Tajmouati; Abdeslam El Bakkali; Mohamed Ahmed Mohamed Baba; Hamid Boua

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arXiv · 1802.04052

Quasi-fredholm and saphar spectrums for the {\alpha}-times integrated semigroups

Abdelaziz Tajmouati·Abdeslam El Bakkali·Mohamed Ahmed Mohamed Baba·Hamid Boua

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Abstract

We continue to study $\alpha$-times integrated semigroups. Essentially, we characterize the different spectrums of $\alpha$-times integrated semigroups by the spectrums of their generators. Particulary quasi-Fredholm, Kato, essentially Kato, Saphar and essentially Saphar spectrums.

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Abdelaziz Tajmouati, Abdeslam El Bakkali, Mohamed Ahmed Mohamed Baba, Hamid Boua. 2018-02-12. Quasi-fredholm and saphar spectrums for the {\alpha}-times integrated semigroups. https://arxiv.org/abs/1802.04052

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