Super-linear elliptic equation for the Pucci operator without growth restrictions for the data
Résumé
In this paper we deal with existence and uniqueness of solution to super-linear problems for the Pucci operator: $$\,-\M^+(D^2u)+|u|^{s-1}u=f(x)\,\quad \mbox{in } \RR^n, $$ where $s>1$ and $f$ satisfies only local integrability conditions. This result is well known when, instead of the Pucci operator, the Laplacian or a divergence form operator is considered. Our existence results use the Alexandroff-Bakelman-Pucci inequality since we cannot use any variational formulation. For radially symmetric $f$ we can prove our results under less local integrability assumptions, taking advantage of an appropriate variational formulation. We also obtain an existence result with boundary explosion in smooth domains.
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