中文摘要：

利用Ekeland变分原理和山路引理,一个三临界点定理分别得到一个关于一类p-Laplacian方程解的存在性的结果.

英文摘要：

Two existence theorems of multiple solutions for p-Laplacian equation with a nonlinear boundary condition are obtained by Ekeland Variational Principle and Mountain-Pass Theorem, and by a three-critical-point theory, respectively.