
Journal of Convex Analysis 06 (1999), No. 1, 013028 Copyright Heldermann Verlag 1999 Memory Effects and GammaConvergence: a TimeDependent Case AncaMaria Toader Centro de Matemática, F.C.U.L., Av. Prof. Gama Pinto 2, 1699 Lisbon, Portugal We study the asymptotic behaviour of the energy functional associated to a parametric first order, nonlinear ordinary differential equation. Techniques of Young measures are improved in order to characterize the Γlimit of the sequence of energy functionals in terms of the oscillations of the coefficients. Some sort of independence between time and the oscillating character of the coefficients is assumed. The example of a periodic mixture of two materials with coefficients analytic in time is presented. [ Fulltextpdf (251 KB)] 