## Differential and Integral Equations

### Existence and multiplicity results for the prescribed mean curvature equation via lower and upper solutions

#### Abstract

We discuss existence and multiplicity of bounded variation solutions of the mixed problem for the prescribed mean curvature equation \begin{equation*} -{\rm div } \Big({\nabla u}/{ \sqrt{1+{|\nabla u|}^2}}\Big) = f(x,u) \hbox{\, in $\Omega$}, \quad u=0 \hbox{\, on $\Gamma_{D}$}, \quad \partial u / \partial \nu =0 \hbox{\, on $\Gamma_{N}$}, \end{equation*} where $\Gamma_{D}$ is an open subset of $\partial \Omega$ and $\Gamma_{N}=\partial \Omega\setminus \Gamma_{D}$. Our approach is based on variational techniques and a lower and upper solutions method specially developed for this problem.

#### Article information

Source
Differential Integral Equations, Volume 22, Number 9/10 (2009), 853-880.

Dates
First available in Project Euclid: 20 December 2012