Homogénéisation d'une fonctionnelle de Ginzburg-Landau

We consider a nonlinear homogenization problem for a Ginzburg-Landau functional with a (positive or negative) surface energy term describing a nematic liquid crystal with inclusions. Assuming that sizes and distances between inclusions are of the same order ε, we obtain a limiting functional as ε → 0. We generalize the method of mesocharacteristics to show that a corresponding homogenized problem for arbitrary, periodic or non-periodic geometries is described by an anisotropic Ginzburg-Landau functional. We give computational formulas for material characteristics of an effective medium.