Existence of infinitely many solutions for a quasilinear elliptic equation

In this paper, we study the following quasilinear elliptic equation −Δu−Δ(u2)u=g(x,u),in  Ω,u=0,on  ∂Ω, where ΩΩ is a bounded smooth domain in RNRN. Using some special techniques, the existence of infinitely many solutions is obtained by a dual approach, which unifies and improves the recent result of Liu et al. (2013).