Nonlinear Sciences – Exactly Solvable and Integrable Systems
Scientific paper
2008-12-02
Nonlinear Sciences
Exactly Solvable and Integrable Systems
15 pages, 2 figured
Scientific paper
The KdV-Sawada-Kotera equation has single-, two- and three-soliton solutions. However, it is not known yet whether it has N-soliton solutions for any N. Viewing it as a perturbed KdV equation, the asymptotic expansion of the solution is developed through third order within the framework of a Normal Form analysis. It is shown that the equation is asymptotically integrable through the order considered. Focusing on the soliton sector, it is shown that the higher-order corrections in the Normal Form expansion represent purely inelastic KdV-soliton-collision processes, and vanish identically in the single-soliton limit. These characteristics are satisfied by the exact two-soliton solution of the KdV-Sawada-Kotera equation: The deviation of this solution from its KdV-type two-soliton approximation describes a purely inelastic scattering process: The incoming state is the faster KdV soliton. It propagates until it hits a localized perturbation, which causes its transformation into the outgoing state, the slower soliton. In addition, the effect of the perturbation on the exact two-soliton solution vanishes identically in the single-soliton limit (equal wave numbers for the two solitons).
No associations
LandOfFree
Special features of the KdV-Sawada-Kotera equation does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Special features of the KdV-Sawada-Kotera equation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Special features of the KdV-Sawada-Kotera equation will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-624139