English

Some embeddings between symmetric R. Thompson groups

Group Theory 2020-02-12 v2

Abstract

Let mnNm\leq n\in \mathbb{N}, and GSmG\leq S_m and HSnH\leq S_n. In this article we find conditions enabling embeddings between the symmetric R. Thompson groups Vm(G)V_m(G) and Vn(H)V_n(H). When n1mod(m1)n\equiv 1 \mod(m-1) and under some other technical conditions we find an embedding of Vn(H)V_n(H) in Vm(G)V_m(G) via topological conjugation. With the same modular condition we also generalise a purely algebraic construction of Birget from 2019 to find a group HSmH\leq S_m and an embedding of Vm(G)V_m(G) in Vn(H)V_n(H).

Keywords

Cite

@article{arxiv.2001.10771,
  title  = {Some embeddings between symmetric R. Thompson groups},
  author = {Julio Aroca and Collin Bleak},
  journal= {arXiv preprint arXiv:2001.10771},
  year   = {2020}
}

Comments

16 pages. The only significant changes are in the introduction, where it has been given a deeper discussion of the relevant history

R2 v1 2026-06-23T13:23:49.885Z