Symmetric waves are traveling waves of some shallow water scalar equations
Journal article, Peer reviewed
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https://hdl.handle.net/11250/3042617Utgivelsesdato
2023Metadata
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Originalversjon
Mathematical Methods in the Applied Sciences. 2023, 46 (5), 5262-5266. 10.1002/mma.8830Sammendrag
Following a straightforward proof for symmetric solutions to be traveling waves by Pei (Exponential decay and symmetry of solitary waves to Degasperis-Procesi equation. Journal of Differential Equations. 2020;269(10):7730-7749), we prove that classical symmetric solutions of the highly nonlinear shallow water equation recently derived by Quirchmayr (A new highly nonlinear shallow water wave equation. Journal of Evolution Equations. 2016;16(3):539-556) are indeed traveling waves, with further information on their steady structures. We also provide a simple proof that symmetric waves are traveling waves to the free surface evolution equation of moderate amplitude waves in shallow water.