New General Decay Rates of Solutions for Two Viscoelastic Wave Equations with Infinite Memory - Archive ouverte HAL
Article Dans Une Revue Mathematical Modelling and Analysis Année : 2020

New General Decay Rates of Solutions for Two Viscoelastic Wave Equations with Infinite Memory

Aissa Guesmia
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Résumé

We consider in this paper the problem of asymptotic behavior of solutions for two viscoelastic wave equations with infinite memory. We show that the stability of the system holds for a much larger class of kernels and get better decay rate than the ones known in the literature. More precisely, we consider infinite memory kernels g : R+ := [0, +∞[→ R * + :=]0, +∞[ satisfying g (t) ≤ −ξ(t)G(g(t)), ∀t ∈ R+ , where ξ : R+ → R * + and G : R+ → R+ are given functions. Under this very general assumption on the behavior of g at infinity and for each viscoelastic wave equation, we provide a relation between the decay rate of the solutions and the growth of g at infinity, which improves the decay rates obtained in [15, 16, 17, 19, 40]. Moreover, we drop the boundedness assumptions on the history data considered in [15, 16, 17, 40].
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hal-02891560 , version 1 (07-07-2020)

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Aissa Guesmia. New General Decay Rates of Solutions for Two Viscoelastic Wave Equations with Infinite Memory. Mathematical Modelling and Analysis, 2020, ⟨10.3846/mma.2020.10458⟩. ⟨hal-02891560⟩
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