  We prove existence results of two solutions of the problem \[ \begin{cases}
L(u)+u^{m-1}=\lambda u^{p-1} & \text{ in $\Omega$}, \\ \quad u>0 &\text{ in
$\Omega$}, \\ \quad u=0 & \text{ on $\partial \Omega$}, \end{cases} \] where
$L(v)=-{\rm div}(M(x)\nabla v)$ is a linear operator, $p\in (2,2^{*}]$ and
$\lambda$ and $ m$ sufficiently large. Then their asymptotical limit as $m\to
+\infty$ is investigated showing different behaviors.
