Abstract
Considered herein is the orbital stability of the periodic peaked solitons for the higher-order modified Camassa–Holm equation. This equation can be viewed as a natural higher-order generalization of the modified Camassa–Holm equation, and admits a single peaked soliton and multi-peakons. We first show that the equation possesses the periodic peakons. Furthermore, it is proved that the periodic peakons are dynamically stable under small perturbations in the energy space by utilizing the inequalities with the maximum and minimum of the solutions related to the first two conservation laws.
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Acknowledgements
The work of Chong is supported by the National NSF of China Grant-11631007. The work of Fu is supported by the National NSF of China Grants-11471259 and 11631007 and Shaanxi Fundamental Science Research Project for Mathematics and Physics (Grant No. 22JSY003).
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Chong, G., Fu, Y. & Wang, H. Orbital stability of periodic peakons for the higher-order modified Camassa–Holm equation. Monatsh Math (2023). https://doi.org/10.1007/s00605-023-01906-2
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DOI: https://doi.org/10.1007/s00605-023-01906-2
Keywords
- Higher-order modified Camassa–Holm equation
- Periodic peaked soliton
- Conservation laws
- Orbital stability