Differential Equations & Applications · Volume 3, Issue 4 A concave-convex quasilinear elliptic problem subject to a nonlinear boundary condition 03-30 Pages 469-486 DOI 10.7153/dea-03-30 Downloads Short PDF Full PDF PNG Authors José C. Sabina de Lis Keywords variational methods sub and supersolutions degenerate diffusion Subject classes 35J70 35B32