Nonlinear Eigenvalues and Bifurcation Problems for Pucci's Operator
  In this paper we extend existing results concerning generalized eigenvalues of Pucci's extremal operators. In the radial case, we also give a complete description of their spectrum, together with an equivalent of Rabinowitz's Global Bifurcation Theorem. This allows us to solve equations involving Pucci's operators. 
Jerome Busca (CEREMADE), Maria J. Esteban (CEREMADE), Alex Quaas   (CEREMADE)