Stability of closed characteristics on compact convex hypersurfaces in R^{2n}
arXiv:1405.4057
Abstract
Let with be any compact convex hypersurface and only has finitely geometrically distinct closed characteristics. Based on Y.Long and C.Zhu 's index jump methods \cite{LoZ1}, we prove that there are at least two geometrically distinct elliptic closed characteristics, and moreover, there exist at least () geometrically distinct closed characteristics such that for any two elements among them, the ratio of their mean indices is irrational number.
22pages, 3 figures. arXiv admin note: substantial text overlap with arXiv:0812.0041, arXiv:math/0109116 by other authors