Multi-bump Solutions for a Strongly Indefinite Semilinear Schrödinger Equation Without Symmetry or convexity Assumptions

Shaowei Chen

In this paper, we study the following semilinear Schrödinger equation with periodic coefficient: $$-△u+V(x)u=f(x,u),u\in H^1({\mathbb{R}}^N).$$ The functional correspo…