Acta mathematica scientia,Series A ›› 2000, Vol. 20 ›› Issue (3): 342-350.

• Articles • Previous Articles     Next Articles

Regularity and Approximation of the Attractor for the Strongly Damped Wave Equation

  

  1. (Department of Mathematics, Huazhong University of Science and Technology, Wuhan 430074)
    (Basic Coures Division,University of Shanghai for Science and Technology, Shanghai 200093)
    (Department of Mathematics and Mechanics, Changsha Railway University, Changsha 410075)
  • Online:2000-05-12 Published:2000-05-12

Abstract:

In this paper the authors consider the initial boundary value problem of the strongly damped wave equation. By using the analytic property of the semigroup generated by the principal operator of the equation in the phase space, they show the smoothing effect of the solution, which is much different from the case of weakly dissipative wave equations. Thus they obtain the regularity of the global attractor, and construct inertial manifolds of the equation, just as usually done in the selfadjoint cases.

Key words: Stronglydamped waveequation, Analyticsemigroup, Regularity, Globalattractor, Approximateinertialmanifold

CLC Number: 

  • 35L20,35B40,58F39
Trendmd