Well-posedness and persistence properties for two-component higher order Camassa-Holm systems with fractional inertia operator

DOI10.1016/J.NONRWA.2016.06.003zbMATH Open1353.35121arXiv1605.08084OpenAlexW2964315397MaRDI QIDQ321960

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Publication date: 14 October 2016

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Abstract: In this paper, we study the Cauchy problem for a two-component higher order Camassa-Holm systems with fractional inertia operator

A = (1 - p a r t i a l_{x}^{2})^{r}, r g e q 1

, which was proposed by Escher and Lyons. By the transport equation theory and Littlewood-Paley decomposition, we obtain that the local well-posedness of solutions for the system in nonhomogeneous Besov spaces

B_{p, q}^{s} i m e s B_{p, q}^{s - 2 r + 1}

with

1 l e q p, q l e q + i n f t y

and the Besov index

s > m a x l e f t 2 r + f r a c 1 p, 2 r + 1 - f r a c 1 p i g h t

. Moreover, we construct the local well-posedness in the critical Besov space

B_{2, 1}^{2 r + f r a c 12} i m e s B_{2, 1}^{f r a c 32}

. On the other hand, the propagation behaviour of compactly supported solutions is examined, namely whether solutions which are initially compactly supported will retain this property throughout their time of evolution. Moreover, we also establish the persistence properties of the solutions to the two-component Camassa-Holm equation with

r = 1

in weighted

L_{p h i}^{p} : = L^{p} (m a t h b b R, p h i^{p} (x) d x)

spaces for a large class of moderate weights.

Full work available at URL: https://arxiv.org/abs/1605.08084

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