Abstract
In this paper, we deal with the steady-state acoustic wave equation in the space ℝ3 diffracted by an obstacle made by an inhomogeneous medium and located in a bounded domain. The inhomogeneity of the medium depends on a parameter e > 0. If the solution ue converges to a solution u0 of the limit problem as e → 0, as in the homogenization process, then we can use the two-scale convergence method to study the convergence of the gradient.
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