Using variational methods, we establish existence of multi-bump solutions for the following class of problems $$ \left\{ \begin{ array}{ l} \Delta^2 u +(\lambda V(x)+1)u = f(u), \quad \mbox{ in} \quad \mathbb{ R}^{ N}, u \in H^{ 2}(\mathbb{ R}^{ N}), \end{ array} \right. $$ where $N \geq 1$, $\Delta^2$ is the biharmonic operator, $f$ is a continuous function with subcritical growth and $V : \mathbb{ R}^N \rightarrow \mathbb{ R}$ is a continuous function verifying some conditions.
Categories: math.AP