energy decay;
wave equation;
nonlinear dissipation;
D O I:
10.1504/IJDSDE.2011.041880
中图分类号:
O29 [应用数学];
学科分类号:
070104 ;
摘要:
We derive a precise decay rate of energy of solutions to the Cauchy problem for the wave equation with a nonlinear dissipative term and an absorbing term. Due to the absorbing term the equation is regarded as a generalised Klein-Gordon equation with a nonlinear dissipative term. This observation plays an important role in the proof.