Thurston 脊柱与亏格 2 中的等变胞腔分解
The Thurston spine and equivariant cell decompositions in genus 2
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中文总结 AI 辅助
本文构造了亏格 2 Teichmüller 空间的 Thurston 脊柱,识别了所有填充 systole 集合的映射类群轨道,并与基于 Rivin 角坐标的胞腔分解进行了对比。
中文摘要 AI 辅助
我们得到了闭紧曲面亏格 2 Teichmüller 空间的 Thurston 脊柱。特别地,我们识别了亏格 2 中所有映射类群轨道的填充 systole 集合。由此,在这个最简单的亏格 2 情形中已经出现了令人惊讶的丰富案例。这与使用 Rivin 角坐标计算得到的 Teichmüller 空间边界化胞腔分解形成对比,其中胞腔由与我们 systole 图密切相关的 Delaunay 图标记。
英文摘要
The Thurston spine of the genus 2 Teichmüller space of closed compact surfaces is obtained. In particular, we identify all mapping class group-orbits of filling sets of systoles in genus 2. Thereby, surprisingly rich cases already appear in this simplest case which is genus 2. This is contrasted with a cell decomposition of a bordification of Teichmüller space obtained computationally using Rivin's angle coordinates, on which the cells are labelled by Delaunay graphs closely related to our systolic graphs.