We prove the orbital stability of periodic traveling-wave solutions for systems of dispersive equations with coupled nonlinear terms. Our method is basically developed under two assumptions: one concerning the spectrum of the linearized operator around the traveling wave and another one concerning the existence of a conserved quantity with suitable properties. The method can be applied to several systems such as the Liu-Kubota-Ko system, the modified KdV system and a log-KdV type system.
Nonlinear stability of periodic-wave solutions for systems of dispersive equations
Fabr'icio Crist'ofani,A. Pastor
Published 2020 in Communications on Pure and Applied Analysis
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- Publication year
2020
- Venue
Communications on Pure and Applied Analysis
- Publication date
2020-02-08
- Fields of study
Mathematics, Physics
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