Equilibrium configurations of defective crystals

Abstract: "A special class of defect preserving deformations in solid crystals, the neutral deformations, is studied. Using the theory of compensated compactness it is shown that neutral deformations are closed with respect to weak convergence and a variational analysis of such states is undertaken. In particular, by means of the div-curl lemma minimizing sequences and their respective Young's probability measures are characterized."