  In this paper we present some non existence results concerning the stable
solutions to the equation $$\operatorname{div}(w(x)|\nabla u|^{p-2}\nabla
u)=g(x)f(u)\;\;\mbox{in}\;\;\mathbb{R}^N;\;\;p\geq 2$$ when $f(u)$ is either
$u^{-\delta}+u^{-\gamma}$, $\delta,\gamma>0$ or $\exp(\frac{1}{u})$ and for a
suitable class of weight functions $w,g$.
