论文标题
两个固定中心问题的周期性轨道，带有变异引力场
Periodic orbits of the two fixed centers problem with a variational gravitational field
论文作者
论文摘要
我们证明了从开普勒问题分叉的两个固定中心问题的周期性轨道存在。当系统的质量参数足够小时，我们提供了这些周期轨道的分析表达式。
We prove the existence of periodic orbits of the two fixed centers problem bifurcating from the Kepler problem. We provide the analytical expressions of these periodic orbits when the mass parameter of the system is sufficiently small.
