We describe the physical hypothesis in which an approximate model of water waves is obtained. For an irrotational unidirectional shallow water now, we derive the CamassaHolm equation by a variational approach in the Lagrangian formalism.
CITATION STYLE
Ionescu-Kruse, D. (2007). Variational derivation of the Camassa-Holm shallow water equation. Journal of Nonlinear Mathematical Physics, 14(3), 311–320. https://doi.org/10.2991/jnmp.2007.14.3.1
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