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math.AP2022
On the admissibility of observation operators in the context of maximal regularity
Omar El Mennaoui, Said Hadd, Yassine Kharou
We study admissible observation operators for perturbed evolution equations using the concept of maximal regularity. We first show the invariance of the maximal -regularity un…
math.AP2021
Analysis and control of integro-differential Volterra equations with delays
Younes ElKadiri, Said Hadd, Hamid Bounit
The purpose of this paper is to introduce a semigroup approach to linear integro-differential systems with delays in state, control and observation parts. On the one hand, we use p…