Positive solutions for infinite semipositone/positone quasilinear   elliptic systems with singular and superlinear terms
  We establish existence and regularity of positive solutions for a class of quasilinear elliptic systems with singular and superlinear terms. The approach is based on sub-supersolution methods for systems of quasilinear singular equations and the Schauder's fixed point Theorem. 
Brahim Khodja, Abdelkrim Moussaoui
math.AP