Geometric and Functional Analysis ( IF 2.4 ) Pub Date : 2023-04-11 , DOI: 10.1007/s00039-023-00636-9 Benjamin Dozier
![]() |
We prove that any ergodic \(SL_2({\mathbb {R}})\)-invariant probability measure on a stratum of translation surfaces satisfies strong regularity: the measure of the set of surfaces with two non-parallel saddle connections of length at most \(\epsilon _1,\epsilon _2\) is \(O(\epsilon _1^2 \cdot \epsilon _2^2)\). We prove a more general theorem which works for any number of short saddle connections. The proof uses the multi-scale compactification of strata recently introduced by Bainbridge–Chen–Gendron–Grushevsky-Möller and the algebraicity result of Filip.
中文翻译:
![](https://scdn.x-mol.com/jcss/images/paperTranslation.png)
测量具有短鞍形连接的平移表面的边界
我们证明平移曲面层上的任何遍历\(SL_2({\mathbb {R}})\)不变概率测度满足强正则性:具有长度为 的两个非平行鞍形连接的曲面集合的测度大多数\(\epsilon _1,\epsilon _2\)是\(O(\epsilon _1^2 \cdot \epsilon _2^2)\)。我们证明了一个更一般的定理,它适用于任意数量的短鞍连接。该证明使用了 Bainbridge-Chen-Gendron-Grushevsky-Möller 最近提出的地层的多尺度致密化和 Filip 的代数结果。