Positive solutions for some quasilinear equations with critical and supercritical growth

We establish results concerning the existence and multiplicity of positive solutions for the problem −div(a(εx)|∇u|p−2∇u)+up−1=f(u)+up∗−1in RN,u∈W1,p(RN), where ε>0ε>0 is a small parameter, 2≤p