Inserted: 29 nov 2011
Last Updated: 29 nov 2011
Let $\mathbb G$ be a free Carnot group (i.e. a connected simply connected nilpotent stratified free Lie group) of step 2. In this paper, we prove that the variational functional generated by ``intrinsic'' Maxwell's equations in $\mathbb G$ is the $\Gamma$-limit of a sequence of classical (i.e. Euclidean) variational functionals associated with strongly anisotropic dielectric permittivity and magnetic permeability in the Euclidean space.