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Long-time Dynamics For A Class Of Nonlinear Wave Equations With Structural Damping

Posted on:2018-12-07Degree:MasterType:Thesis
Country:ChinaCandidate:Y J ZhaoFull Text:PDF
GTID:2310330515469790Subject:Basic mathematics
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In this paper, we are concerned with the existence of global attractor and exponential attractor for the quasi-linear structural damped wave equation where is a bounded domain with smooth boundary (?)Ω, the nonlinear term is f(u) and g is external force. we suppose that the growth exponent of f is q : 1≤ g < ∞, we prove that the solution for the equation is of higher global regularity as In natural energy spaceε =(W2,p+1∩H01)×L2 the existence of finite-dimensional global and exponential attractors is established as . When p’≤p < pα , we establish the existence of(ε,ε-θ) global attractor (weak global attractor) and (ε,ε-α) exponential attractor (weak exponential attractor), where ε-θ=W2-θ,p+1×L2,ε-α=Vα×V-α.
Keywords/Search Tags:Wave equation, structural damping, initial boundary value problem, global attractor, quasi-stability, exponential attractor, weak global attractor, weak exponential attractor
PDF Full Text Request
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