Ducival Carvalho PEREIRA, Adriano Pedreira CATTAI, Carlos Alberto RAPOSO

Global existence and energy decay for a coupled system of Kirchhoff beam equations with weakly damping and logarithmic source

This paper deals with the global solutions and exponential stability for a coupled system of Kirchhoff beam weakly damping and with a logarithmic source. We apply the potential well and establish the global well-posedness by using the Faedo–Galerkin approximations, taking into account that the initial data is located in a suitable set of stability created from the Nehari manifold. Moreover, by using Nakao’s lemma, we prove the exponential stability of the solution.

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