Oscillations and concentrations in sequences of gradients
We use DiPerna’s and Majda’s generalization of Young measures to describe oscillations and concentrations in sequences of gradients, , bounded in if and is a bounded domain with the extension property in . Our main result is a characterization of those DiPerna-Majda measures which are generated by gradients of Sobolev maps satisfying the same fixed Dirichlet boundary condition. Cases where no boundary conditions nor regularity of are required and links with lower semicontinuity results...