Volume no :3, Issue no: 1, February (2010)

THE LONG TIME BEHAVIOUR OF SOLUTIONS FOR AN IMPROVED BOUSSINESQ SYSTEM

Author's: Yunxi Guo, Yonghong Wu and Shaoyong Lai
Pages: [37] - [49]
Received Date: August 19, 2009
Submitted by:

Abstract

The Fourier transform and perturbation techniques are employed to deal with the long time behaviour of solutions for a generalized Boussinesq equation associated with initial-boundary data. It is established that the global solution of the equation takes the form of a uniformly convergent Fourier series with variable coefficients relating to a small parameter presented in the initial conditions. It is also shown that the long time asymptotics of the solution decays exponentially in time.

Keywords

Boussinesq equation, asymptotics, Fourier transform, exponential decay.