Acta mathematica scientia,Series A ›› 2026, Vol. 46 ›› Issue (3): 1015-1024.

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Existence of Global Attractors of the Benjamin-Bona-Mahony Equation in Three-Dimensional Channel

Ling Wan(), Yuying Xu(), Tengfei Zhang*()   

  1. School of Mathematics and Physics, China University of Geosciences, Wuhan 430074
  • Received:2024-12-01 Revised:2025-07-19 Online:2026-06-26 Published:2026-06-16
  • Contact: Tengfei Zhang E-mail:wanling@cug.edu.cn;xuyuyingyys66@cug.edu.cn;zhangtf@cug.edu.cn
  • Supported by:
    NSFC(12371228);Guangdong Basic and Applied Basic Research Foundation(2024A1515011040)

Abstract:

This article establishes the existence of global attractors for the (generalized) Benjamin-Bona-Mahony equation in a three-dimensional channel, when the nonlinear term satisfies the growth condition of order $m=2$, which extends the result obtained by Wang-Fussner-Bi [Wang B, Fussner D W, Bi C. J Phys A, 2007, 40(34): 10491-10504]. In particular, in order to prove the asymptotic compactness of the solution semigroup, we prove firstly the weak continuity property, and secondly the convergence in norm by taking advantage of the energy equation method.

Key words: Benjamin-Bona-Mahony equation, global attractor, asymptotic compactness, weak continuity.

CLC Number: 

  • O175.29
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