Huagui Duan , Hui Liu , Yiming Long , Zihao Qi , Wei Wang
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Three closed characteristics on non-degenerate star-shaped hypersurfaces in R6
In this paper, we prove that for every non-degenerate compact star-shaped hypersurface Σ in which carries no prime closed characteristic of Maslov-type index 0 or no prime closed characteristic of Maslov-type index −1, there exist at least three prime closed characteristics on Σ.
期刊介绍:
The Journal of Differential Equations is concerned with the theory and the application of differential equations. The articles published are addressed not only to mathematicians but also to those engineers, physicists, and other scientists for whom differential equations are valuable research tools.
Research Areas Include:
• Mathematical control theory
• Ordinary differential equations
• Partial differential equations
• Stochastic differential equations
• Topological dynamics
• Related topics