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The Non-contractibility of Closed Geodesics on Finsler ℝ P n
Acta Mathematica Sinica, English Series ( IF 0.8 ) Pub Date : 2021-04-25 , DOI: 10.1007/s10114-021-0023-4
Hua Gui Duan , Hui Liu

Let (ℝPn, F) be a bumpy and irreversible Finsler n-dimensional real projective space with reversibility λ and flag curvature K satisfying \({\left( {{\lambda \over {1 + \lambda }}} \right)^2} < K \le 1\) when n is odd, and K ≥ 0 when n is even. We show that if there exist exactly \(2\left[ {{{n + 1} \over 2}} \right]\) prime closed geodesics on such (ℝPn, F), then all of them are non-contractible, which coincides with the Katok’s examples.



中文翻译:

FinslerℝP n上封闭测地线的不可收缩性

让(ℝ P Ñ,F)是一个颠簸和不可逆转芬斯拉Ñ维实射影空间与可逆性λ和旗曲率ķ满足\({\左({{\拉姆达\超过{1个+ \拉姆达}}} \右)^ 2} <K \文件1 \)ñ为奇数,并且ķ≥ 0时ñ是偶数。我们发现,如果存在完全相同\(2 \左[{{{N + 1} \超过2}} \右] \)对这种本原闭测地线(ℝ P ñ,F),然后所有的人都非可收缩的,这与Katok的例子相吻合。

更新日期:2021-04-24
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