Abstract
For many evolution problems, a basic question is to establish convergence to equilibrium for globally defined solutions. This type of result is well known for the semilinear wave equation with linear dissipation. In this paper, we are concerned with the asymptotic behavior of global and bounded solutions of the following semilinear wave equation
with homogeneous Dirichlet boundary conditions and initial conditions. Here, α ≥ 0, \({\Omega \subset \mathbb{R}^{N}\, (N\geq1)}\) is a bounded domain with sufficiently smooth boundary and \({f:\Omega\times\mathbb{R}\longrightarrow \mathbb{R}}\) is analytic in the second variable, uniformly with respect to the first one. In this paper, we suppose that the set of stationary solutions is compact and we prove convergence of global and bounded solutions to an equilibrium, for some small value of α depending on the nonlinearity f. The case α = 0 corresponds to the wave equation with linear dissipation which is solved by Haraux and Jendoubi (Calc Var Partial Differ Equ 9:95–124, 1999).
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Chergui, L. Convergence of global and bounded solutions of the wave equation with nonlinear dissipation and analytic nonlinearity. J. Evol. Equ. 9, 405–418 (2009). https://doi.org/10.1007/s00028-009-0016-8
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DOI: https://doi.org/10.1007/s00028-009-0016-8