Differential Equations & Applications · Volume 3, Issue 1 Existence of positive solutions for quasilinear elliptic systems with Sobolev critical exponents 03-05 Pages 57-71 DOI 10.7153/dea-03-05 Downloads Short PDF Full PDF PNG Authors Xiaoyan Cao Zuodong Yang Keywords elliptic systems subsolutions supersolutions comparison principle Subject classes 35J25 35J60