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On propagation of regularities and evolution of radius of analyticity in the solution of the fifth-order KdV-BBM model

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Autor(es):
Carvajal, X. ; Panthee, M.
Número total de Autores: 2
Tipo de documento: Artigo Científico
Fonte: ZEITSCHRIFT FUR ANGEWANDTE MATHEMATIK UND PHYSIK; v. 73, n. 2, p. 15-pg., 2022-04-01.
Resumo

We consider the initial value problem (IVP) associated with a fifth-order KdV-BBM-type model that describes the propagation of unidirectional water waves. We prove that the regularity in the initial data propagates in the solution; in other words, no singularities can appear or disappear in the solution to this model. We also prove the local well-posedness of the IVP in the space of the analytic functions, the so-called Gevrey class. Furthermore, we discuss the evolution of radius of analyticity in such class by providing explicit formulas for upper and lower bounds. (AU)

Processo FAPESP: 20/14833-8 - Modelos de ondas dispersivas não lineares
Beneficiário:Mahendra Prasad Panthee
Modalidade de apoio: Auxílio à Pesquisa - Regular