1. Crandall, M., Ishi, H., Lions, P.L.: User’s guide to viscosity solutions of second order partial differential equations. Bull. AMS. 27(1), 1–67 (1992)
2. Cabré, X., Caffarelli, L.A.: Fully nonlinear elliptic equation, american mathematical society. Colloquium Publication, Cologne (1995)
3. Felmer, P., Quaas, A.: Positive solutions to semilinear equation involving the Pucci’s operator. J. Differ. Equ. 199(2), 376–393 (2004)
4. Quaas, A.: Existence of positive solutions to a semilinear equation involving the Pucci’s operator in a convex domain. Diff. Integral Equ. 17, 481–494 (2004)
5. Rouy, E.: First Semi-eigenvalue for nonlinear elliptic operator (preprint)