M. Amouch

most citedSpectra Originated from Fredholm Theory and Browder's Theorem

4 citations · 4 across the 2 of their papers we have counts for

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math.SP2017★ 4 cited

Spectra Originated from Fredholm Theory and Browder's Theorem

Mohamed Amouch, Mohamed Karmouni, Abdelaziz Tajmouati

We give a new characterization of Browders theorem through equality between the pseudo B-Weyl spectrum and the generalized Drazin spectrum. Also, we will give conditions under whic…

math.SP2016

Spectral inclusion for $C_{0}$ -Semigroups Drazin invertible and Quasi-Fredholm operators

A. Tajmouati, M. Amouch, M. R. F. Z. Alhomidi

Let $(T (t))_{t \geq 0}$ be a $C_{0}$ semigroups and $A$ be its infinitesimal generator. In this work, we prove that the spectral inclusion for $(T (t))_{t \geq 0}$ remains true for the Dr…

math.SP2016

Pseudo B-Fredholm Operators and Spectral Theory

Abdelaziz Tajmouati, Mohamed Amouch, Mohamed Karmouni

In this paper, we show that every pseudo B-Fredholm operator is a pseudo Fredholm operator. Afterwards, we prove that the pseudo B-Weyl spectrum is empty if and only if the pseudo…

Spectra Originated from Fredholm Theory and Browder's Theorem

Spectral inclusion for C0​-Semigroups Drazin invertible and Quasi-Fredholm operators

Pseudo B-Fredholm Operators and Spectral Theory

Spectral inclusion for $C_{0}$ -Semigroups Drazin invertible and Quasi-Fredholm operators