Seminar NMMA584
Recommended literature
Caffarelli, L. A; Peral, I. On W1,p estimates for elliptic equations in divergence form. Comm. Pure Appl. Math. 51 (1998), no. 1, 1–21.
Caffarelli, L. A; Peral, I. On W1,p estimates for elliptic equations in divergence form. Comm. Pure Appl. Math. 51 (1998), no. 1, 1–21.