Abstract
The stability of the Camassa-Holm (periodic) peakons in the dynamics of an integrable shallow-water-type system is investigated. A variational approach with the use of the Lyapunov method is presented to prove the variational characterization and the orbital stability of these wave patterns. In addition, a sufficient condition for the global existence of strong solutions is given. Finally, a local-in-space wave-breaking criterion is illustrated in the periodic setting.
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Acknowledgments
The work of R.M. Chen was partially supported by the Central Research Development Fund No. 04.13205.30205 from University of Pittsburgh. The work of X.C. Liu is supported by NSF-China grant 11401471 and Ph.D. Programs Foundation of Ministry of Education of China-20136101120017. The work of Y. Liu is partially supported by NSF grant DMS-1207840. The work of C.Z. Qu is supported by the NSF-China grant-11471174 and NSF of Ningbo grant-2014A610018.
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Communicated by P. Rabinowitz.
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Chen, R.M., Liu, X., Liu, Y. et al. Stability of the Camassa-Holm peakons in the dynamics of a shallow-water-type system. Calc. Var. 55, 34 (2016). https://doi.org/10.1007/s00526-016-0972-0
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DOI: https://doi.org/10.1007/s00526-016-0972-0