arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2102.00825math.GTmath.DG
收藏

双曲$n$ -流形中的收缩长度

Systole Length in Hyperbolic $n$-Manifolds

Joe Scull

摘要:

我们表明,长度$R$收缩的一个封闭的双曲$n$ -流形$(n \geq 3)$承认三角形的$t$ $n$ -单纯形可以有界以下的一个功能$n$和$t$,即\[ R \geq \frac{1}{2^{(nt)^{O(n^4t)} }} .\],我们通过找到$n$的数量之间的关系来做到这一点。单形和直径的歧管,并给出明确的界限之间的关系众所周知的核心曲线的长度的马古利斯管和它的半径。我们证明了同样的结果有限体积流形,类似的,但稍微涉及证明。

英文摘要:

We show that the length $R$ of a systole of a closed hyperbolic $n$-manifold $(n \geq 3)$ admitting a triangulation by $t$ $n$-simplices can be bounded below by a function of $n$ and $t$, namely \[ R \geq \frac{1}{2^{(nt)^{O(n^4t)} }} .\] We do this by finding a relation between the number of $n$-simplices and the diameter of the manifold and by giving explicit bounds for a well known relation between the length of the core curve of a Margulis tube and its radius. We prove the same result for finite volume manifolds, with a similar but slightly more involved proof.

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。

↑