关于模块群的 Pappus 表示与 Anosov 表示
几何拓扑
2026-05-18 v1
摘要
设 。设 为模块群进入 中离散忠实表示的空间,这些表示将阶为 2 的生成元映射为唯一固定点的等距变换。在本文中,我们证明 包含一个称为 Barbot 组件 () 的连通分量,其拓扑等价于 。 的边界参数化了 Pappus 表示,而其内部则由 Anosov 表示构成。
引用
@article{arxiv.2605.15317,
title = {On Pappus and Anosov Representations of the Modular Group},
author = {Richard Evan Schwartz},
journal= {arXiv preprint arXiv:2605.15317},
year = {2026}
}
备注
This is an edited and improved subset of a very long paper of mine, arXiv:2412.18547. In this shorter paper I isolate one of the main results and give a self-contained proof. I also take the opportunity to fix a few glitches and add some helpful details. Computer assisted - Mathematica files downloadable from my website