English

Mesosome Avoidance

Discrete Mathematics 2021-07-30 v1 Combinatorics

Abstract

We consider avoiding mesosomes -- that is, words of the form xxxx' with xx' a conjugate of xx that is different from xx -- over a binary alphabet. We give a structure theorem for mesosome-avoiding words, count how many there are, characterize all the infinite mesosome-avoiding words, and determine the minimal forbidden words.

Cite

@article{arxiv.2107.13813,
  title  = {Mesosome Avoidance},
  author = {Robert Cummings and Jeffrey Shallit and Paul Staadecker},
  journal= {arXiv preprint arXiv:2107.13813},
  year   = {2021}
}