Existence and decay of solution to coupled system of viscoelastic wave equations with strong damping in Rn

Keltoum Bouhali; Fateh Ellaggoune

doi:10.5269/bspm.41175

Keltoum Bouhali Universite des freres Mentouri
Fateh Ellaggoune University 08 Mai 1945 https://orcid.org/0000-0003-1154-169X

Resumo

In this paper, we establish a general decay rate properties of solutions for a coupled system of viscoelastic wave equations in IRn under some assumptions on g1; g2 and linear forcing terms. We exploit a density function to introduce weighted spaces for solutions and using an appropriate perturbed energy method. The questions of global existence in the nonlinear cases is also proved in Sobolev spaces using the well known Galerkin method.

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