Existence of Solutions for Quasilinear Coupled Systemswith Multiple Critical Nonlinearities

Abstract

This paper is dedicated to investigating a quasilinear elliptic systemwith p- Laplacian in R N , which involves critical Hardy-Littlewood-Sobolev nonlinearities and critical Sobolev nonlinearities. Based upon the Hardy-Littlewood-Sobolev inequality and variational methods, we obtain the attainability of the corresponding best constants and the existence of nontrivial solutions.