The initial-boundary value problem for the Kawahara equation on the half-line

Márcio Cavalcante, Chulkwang Kwak

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9 Scopus citations


This paper concerns the initial-boundary value problem of the Kawahara equation posed on the right and left half-lines. We prove the local well-posedness in the low regularity Sobolev space. We introduce the Duhamel boundary forcing operator, which is introduced by Colliander and Kenig (Commun Partial Differ Equ 27:2187–2266, 2002) in the context of Airy group operators, to construct solutions on the whole line. We also give the bilinear estimate in Xs,b space for b<12, which is almost sharp compared to IVP of Kawahara equation (Chen et al. in J Anal Math 107:221–238, 2009; Jia and Huo in J Differ Equ 246:2448–2467, 2009).

Original languageEnglish
Article number45
JournalNonlinear Differential Equations and Applications
Issue number5
StatePublished - 1 Oct 2020


  • Initial-boundary value problem
  • Kawahara equation
  • Local well-posedness


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