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Original Articles

Decay of solutions of a Boussinesq-type system with variable coefficients

Pages 589-612 | Received 27 Apr 2012, Accepted 22 Sep 2012, Published online: 15 Oct 2012
 

Abstract

We introduce a modified Chebyshev rational approximation applied to a weakly nonlinear, weakly dispersive Boussinesq formulation considered on the whole line, which is a model for waves propagating on the surface of a channel with variable bottom. We also establish rigorous convergence and error estimates in L 2 of the semidiscrete and fully discrete numerical schemes and validate the numerical results using the theory derived in a previous paper on the decay of a linear pulse propagating along the surface of a channel with a random bottom.

Acknowledgements

This work was supported by the Universidad del Valle, A.A. 25360, Cali, Colombia.

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