Electronic Journal of Differential Equations, Vol. 2010(2010), No. 77, pp. 1-12. Title: Infinity Laplace equation with non-trivial right-hand side Authors: Guozhen Lu (Wayne State Univ., Detroit, MI, USA) Peiyong Wang (Wayne State Univ., Detroit, MI, USA) Abstract: We analyze the set of continuous viscosity solutions of the infinity Laplace equation $-\Delta^N_{\infty}w(x) = f(x)$, with generally sign-changing right-hand side in a bounded domain. The existence of a least and a greatest continuous viscosity solutions, up to the boundary, is proved through a Perron's construction by means of a strict comparison principle. These extremal solutions are proved to be absolutely extremal solutions. Submitted July 2, 2009. Published June 08, 2010. Math Subject Classifications: 35J70, 35B35. Key Words: Infinity Laplace equation; inhomogeneous equation; viscosity solutions; least solution; greatest solution; strict comparison principle; existence; uniqueness; local Lipschitz continuity.