10-52 Annalisa Cesaroni, Matteo Novaga, Enrico Valdinoci

Curvature flow in heterogeneous media (66K, LaTex) Mar 17, 10

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Abstract. In recent years, there has been a growing interest in geometric evolution in heterogeneous media. Here we consider curvature driven flows of planar curves, with an additional space-dependent forcing term. Motivated by a homogenization problem, we look for estimates which depend only on the $L^\infty$-norm of the forcing term. By means of an asymptotic analysis, we discuss the properties of the limit solutions of the homogenization problem, which we can rigorously solve in some special cases: that is, when the initial curve is a graph, and the forcing term does not depend on the vertical direction. As a by-product, in such cases we are able to define a solution of the geometric evolution when the forcing term is just a bounded, not necessarily continuous, function.

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