2 papers
math.SG2026
Stability of closed characteristics and invariant sets on star-shaped hypersurfaces
Huagui Duan, Zihao Qi
This paper focuses on the stability of a closed characteristic and invariant sets on compact star shaped hypersurfaces in with finitely many simple closed characteri…
math.SG2026
Closed Reeb orbits on contact type hypersurfaces in
Huagui Duan, Zihao Qi
In this paper, it is proved that under dynamically convex condition, there exist at least closed Reeb orbits on a closed contact type hypersurface in enc…