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Modulation analysis of the stochastic Camassa-Holm equation with pure jump noise

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arxiv 2303.04981 v1 pith:BLSG7SJF submitted 2023-03-09 math.PR math.AP

Modulation analysis of the stochastic Camassa-Holm equation with pure jump noise

classification math.PR math.AP
keywords equationsolutionjumpnoisestochasticcamassa-holmmodulationpure
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We study the stochastic Camassa-Holm equation with pure jump noise. We prove that if the initial condition of the solution is a solitary wave solution of the unperturbed equation, the solution decomposes into the sum of a randomly modulated solitary wave and a small remainder. Moreover, we derive the equations for the modulation parameters and show that the remainder converges to the solution of a stochastic linear equation as amplitude of the jump noise tends to zero.

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