Acta mathematica scientia,Series B ›› 2018, Vol. 38 ›› Issue (2): 651-672.doi: 10.1016/S0252-9602(18)30772-0

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THE GLOBAL ATTRACTOR FOR A VISCOUS WEAKLY DISSIPATIVE GENERALIZED TWO-COMPONENT μ-HUNTER-SAXTON SYSTEM

Lei ZHANG, Bin LIU   

  1. School of Mathematics and Statistics, Hubei Key Laboratory of Engineering Modeling and Scientific Computing, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2016-11-09 Revised:2017-05-17 Online:2018-04-25 Published:2018-04-25
  • Contact: Bin LIU E-mail:binliu@mail.hust.edu.cn
  • Supported by:

    This work was partially supported by NNSF of China (11571126, 11701198), and China Postdoctoral Science Foundation funded project (2017M622397).

Abstract:

This article is concerned with the existence of global attractor of a weakly dissipative generalized two-component μ-Hunter-Saxton (gμHS2) system with viscous terms. Under the period boundary conditions and with the help of the Galerkin procedure and compactness method, we first investigate the existence of global solution for the viscous weakly dissipative (gμHS2) system. On the basis of some uniformly prior estimates of the solution to the viscous weakly dissipative (gμHS2) system, we show that the semi-group of the solution operator {S(t)}t ≥ 0 has a bounded absorbing set. Moreover, we prove that the dynamical system {S(t)}t ≥ 0 possesses a global attractor in the Sobolev space H2(S)×H2(S).

Key words: Generalized two-component μ-Hunter-Saxton system, viscous weakly dissipative, existence, global attractor, period boundary conditions

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