中文

二次Baumslag-Solitar群的JSJ分解

群论 2016-01-20 v3 几何拓扑

摘要

广义Baumslag-Solitar群被定义为具有无限循环顶点群和边群的图群的基本群。Forester证明了(见“On uniqueness of JSJ decompositions of finitely generated groups”, Comment. Math. Helv. 78 (2003) pp 740-751)在大多数情况下,定义图是Rips和Sela意义上的循环JSJ分解。这里我们将Forester的结果推广到顶点群可以是无限循环或二次悬挂曲面群的图群。

关键词

引用

@article{arxiv.1102.4589,
  title  = {JSJ decompositions of Quadratic Baumslag-Solitar groups},
  author = {Juan Alonso},
  journal= {arXiv preprint arXiv:1102.4589},
  year   = {2016}
}

备注

20 pages, 2 figures. Several corrections and improvements from referee's report. Imprtant changes in Definition 5.1, and the proof of Theorem 5.5 (previously 5.4). Lemma 5.4 was added