该文考虑了如下薛定谔方程{-△u+V(x)u=f(x,u),对x∈R^N,u(x)→0,当|x|→∞,其中V与f关于x是周期的,0是谱σ(-△+V)的一个边界点.受最近的文献[35]的启发,进一步考虑了f(x,u)在|u|→∞时是渐近线性的情况,并利用非Nehari流形方法得到了该方程的基态解.与广义Nehari流形方法相比,该方法更加简便、直接.
This paper is concerned with the following Schrodinger equation {-△u+V(x)u=f(x,u),对x∈R^N,u(x)→0,当|x|→∞ where V and f are both periodic in x and 0 is a boundary point of the spectrum σ(-△+V). Inspired by recent work of Tang[35], we consider further the case that f(x, u) is asymptotically linear as |u|→∞, and obtain the existence of ground state solutions using the non-Nehari manifold method which is more direct and simpler than the generalized manifold method.