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1 paper

nlin.SI2026

Quadratic Poisson brackets for the Camassa--Holm peakons

J. Avan, L. Frappat, E. Ragoucy

We establish quadratic Poisson brackets for the generalized Camassa--Holm peakon structure introduced in \cite{AFR23}. The calculation is based on the halving of the spectral param…