English

On a free group of transformations defined by an automaton

Group Theory 2007-05-23 v2

Abstract

We prove that three automorphisms of the rooted binary tree defined by a certain 3-state automaton generate a free non-Abelian group of rank 3.

Cite

@article{arxiv.math/0601231,
  title  = {On a free group of transformations defined by an automaton},
  author = {Mariya Vorobets and Yaroslav Vorobets},
  journal= {arXiv preprint arXiv:math/0601231},
  year   = {2007}
}

Comments

19 pages, 4 figures

R2 v1 2026-07-22T17:29:48.017Z