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math.OC2026
Energy decay and weak observability for some evolution systems
Kaïs Ammari, Faouzi Triki
In an abstract functional framework, we investigate the equivalence between two fundamental properties: weak observability and energy decay associated with certain classes of dissi…
math.OC2026
Weak Observability Characterization for Abstract Wave Equations
Nisrine Charaf, Faouzi Triki
In this paper, we investigate the weak observability of second-order infinite-dimensional evolution systems generated by skew-adjoint operators of the form , where is a…