Electronic Journal of Differential Equations,
Vol. 2012 (2012), No. 185, pp. 1-8.

Title: Lower semicontinuity of pullback attractors for a singularly 
       nonautonomous plate equation
 
Author: Ricardo Parreira da Silva (Univ. Estadual Paulista, Brazil)

Abstract:
 We show the lower semicontinuity of the family of pullback attractors
 for the singularly nonautonomous plate equation with structural damping
 $$
 u_{tt} + a(t,x)u_{t} + (- \Delta) u_{t} +  (-\Delta)^{2} u + \lambda u = f(u),
 $$
 in the energy space $H^2_0(\Omega) \times L^2(\Omega)$ under small
 perturbations of the damping term a.

Submitted April 9, 2012. Published October 28, 2012.
Math Subject Classifications: 35B41, 35L25, 35Q35.
Key Words: Pullback attractors; nonautonomous systems;
           plate equation; lower-semicontinuity.