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arXiv 0705.4190math.DG
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正曲Finsler球面上的闭测地线

Closed geodesics on positively curved Finsler spheres

Wei Wang

摘要:

本文证明了:对于任意Finsler $n$ -球面$(S^n, F)$,对于$n\ge 3$,如果可逆性$λ$和旗曲率$K$满足$(\fracλ{λ+1})^2<K\le 1$,则存在无穷多条素闭测地线,或者存在一条椭圆闭测地线,其线性化Poincaré映射至少有一个特征值为带无理$μ$的$\exp(πi μ)$形式.而且,在满足上述拼挤条件的任何$(S^3, F)$上,总存在三条素闭测地线.

英文摘要:

In this paper, we prove that for every Finsler $n$-sphere $(S^n, F)$ for $n\ge 3$ with reversibility $λ$ and flag curvature $K$ satisfying $(\fracλ{λ+1})^2<K\le 1$, either there exist infinitely many prime closed geodesics or there exists one elliptic closed geodesic whose linearized Poincaré map has at least one eigenvalue which is of the form $\exp(πi μ)$ with an irrational $μ$. Furthermore, there always exist three prime closed geodesics on any $(S^3, F)$ satisfying the above pinching condition.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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