arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1107.0672math.GRmath.DS
收藏

在R. Thompson群V_n

Centralizers in R. Thompson's group V_n

Collin Bleak, Hannah Bowman, Alison Gordon, Garrett Graham, Jacob Hughes, Francesco Matucci, Jenya Sapir

摘要:

设n大于1,A是Higman-Thompson群V_n中的元素.通过对A生成的群在康托尔集C上的作用的细致分析,研究了A在V_n中的中心化子的结构。我们利用揭示树对布林和萨拉查,我们从中获得离散的训练轨道,以帮助我们在我们的分析。我们的结构定理的一个结果是中心子是平行生成的。在此过程中,我们给出了一个简短的论点,使用揭示树对,这表明循环群是不失真的V_n。

英文摘要:

Let n be bigger than 1 and let A be an element in the Higman-Thompson group V_n. We study the structure of the centralizer of a in V_n through a careful analysis of the action of the group generated by A on the Cantor set C. We make use of revealing tree pairs as developed by Brin and Salazar from which we derive discrete train tracks to assist us in our analysis. A consequence of our structure theorem is that centralizers are finitely generated. Along the way we give a short argument using revealing tree pairs which shows that cyclic groups are undistorted in V_n.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑