Notes on sets of first return
Combinatorics
2013-09-09 v2
Abstract
We prove in this note that, for an alphabet with three letters, the set of first return to a given word in a set satisfying the tree condition is a basis of the free group.
Cite
@article{arxiv.1308.5618,
title = {Notes on sets of first return},
author = {Valérie Berthé and Clelia De Felice and Francesco Dolce and Dominique Perrin and Christophe Reutenauer and Giuseppina Rindone},
journal= {arXiv preprint arXiv:1308.5618},
year = {2013}
}