Abstract

We prove the classical Alexandroff-Bakelman-Pucci estimate for fully nonlinear elliptic equations involving singular or degenerate operators having as models | p |a M?, ? ± (X), where M?, ? ± are the Pucci extremal operators with parameters 0 < ? = ? and a > - 1. To cite this article: G. Dávila et al., C. R. Acad. Sci. Paris, Ser. I 347 (2009). © 2009 Académie des sciences.