Decay rates for solutions of semilinear wave equations with a memory condition at the boundary

M. L. Santos, UFPA, Para, Brazil

E. J. Qualitative Theory of Diff. Equ., No. 7. (2002), pp. 1-17.

Abstract: In this paper, we study the stability of solutions for semilinear wave equations whoseboundary condition includes a integral that represents the memory effect. We show that the dissipation is strong enough to produce exponential decay of the solution, provided the relaxation function also decays exponentially. When the relaxation function decays polinomially, we show that the solution decays polynomially and with the same rate.

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