TY - JOUR AU - J.M. Lasry AU - Lions P.L. TI - Nonlinear Elliptic Equations with Singular Boundary Conditions and Stochastic Control with State Constraints. I. The Model Problem. JO - Mathematische Annalen PY - 1989 SP - 583 EP - 630 VL - 283 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MAN_1989__283_1_164529/ ID - MAN_1989__283_1_164529 ER -