Uniqueness and Regularity Results for First-Order Hamilton-Jacobi Equations Guy Barles Indiana University Mathematics Journal 1990 text pdf 10.1512/iumj.1990.39.39024 10.1512/iumj.1990.39.39024 en Indiana Univ. Math. J. 39 (1990) 443 - 466 state-of-the-art mathematics http://iumj.org/access/