具有两端边群的虚自由群图的拟等距刚性
群论
2021-10-29 v3
摘要
我们研究了一大类有限生成群的拟等距刚性,这些群分解为以虚自由顶点群和两端边群为构件的群图。设 是一个一端、相对于虚阿贝尔子群双曲、且具有仅含非二次悬挂的虚自由顶点群的两端部子群 JSJ 分解的群。我们的主要结果是,任何与 拟等距的群均抽象可公度于 。特别地,我们的结果适用于自由群在循环子群上的某些“一般” HNN 扩张。
引用
@article{arxiv.2007.10034,
title = {Quasi-isometric rigidity for graphs of virtually free groups with two-ended edge groups},
author = {Sam Shepherd and Daniel J. Woodhouse},
journal= {arXiv preprint arXiv:2007.10034},
year = {2021}
}
备注
53 pages, 3 figures; v2: minor changes including to the statement of Theorem 1.3; v3: minor changes following referee's comments; to appear in Crelles