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Comparison principle for dirichlet-type Hamilton-Jacobi equations and singular perturbations of degenerated elliptic equations
Authors:G. Barles  B. Perthame
Affiliation:1. Ceremade, Université de Paris IX Dauphine, Place de Lattre de Tassigny, 75775, Paris Cedex 16, France
2. CMA, Ecole Normale Supérieure, 45 Rue d'Ulm, 75230, Paris Cedex 05, France
Abstract:Under a nondegeneracy condition on the boundary, we prove a comparison principle for discontinuous viscosity sub- and supersolutions of the generalized Dirichlet boundary-value problem for a first-order Hamilton-Jacobi equation

$$left{ {begin{array}{*{20}c}   {H(x,u,Du) = 0     in Omega ,}     {Max(H(x,u,Du);u - varphi ) geqslant 0     on partial Omega ,}     {Min(H(x,u,Du);u - varphi ) leqslant 0     on partial Omega .}   end{array} } right.$$
Keywords:
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