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Finite-dimensional Attractors For The Membrane Equation With Strong Damping Term

Posted on:2013-09-10Degree:MasterType:Thesis
Country:ChinaCandidate:Y Z ZhaoFull Text:PDF
GTID:2230330371976634Subject:Basic mathematics
Abstract/Summary:PDF Full Text Request
In this paper, we are concerned with the existence of the finite-dimensional global attractor and exponential attractor for the Membrane equation with strong damping where,Ω(?)R3 is a bounded domain with smooth boundary (?)Ω, and the assumptions on nonlinear termφ, f and external force g will be specified later.Undering rather mild conditions on nonlinear termsφ, f(u), the paper using standard Galerkin approximation scheme to prove the existence and uniqueness of global solutions in the space [W2,P+1∩Lq+2]×L2 of the above mentioned problem. And by using the method of L-trajectories proves that the corresponding infinite dimensional dynamical system possesses a (W1, W-1)- weak global attractor A which has finite fractal dimension and a (W1; W-1)- weak exponential attractor C.
Keywords/Search Tags:Membrane equation, initial boundary value problem, infinite-dimensional dynamical system, weak global attractor, weak exponential attractor, themethod of L-trajectories
PDF Full Text Request
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