Qualitative properties of Hénon type equations with exponential nonlinearity

Abstract

We are interested in the qualitative properties of solutions of the Hénon type equations with exponential nonlinearity. First, we classify the stable at infinity solutions of $\Delta u+|x{|}^{\alpha }{e}^u=0$ in ${\mathbb{R}}^N$, which gives a complete answer to the problem considered in [Wang-Ye]. Secondly, existence and precise asymptotic behaviors of entire radial solutions to ${\Delta }^{2}u=|x{|}^{\alpha }{e}^u$ are obtained. Then we classify the stable and stable at infinity radial solutions to ${\Delta }^{2}u=|x{|}^{\alpha }{e}^u$ in any dimension.