Nice formulas, $ xyx $-formulas, and palindrome patterns
P Ochem, M Rosenfeld - arXiv preprint arXiv:2005.05505, 2020 - arxiv.org
We characterize the formulas that are avoided by every $\alpha $-free word for some
$\alpha> 1$. We study the avoidability index of formulas whose fragments are of the form …
$\alpha> 1$. We study the avoidability index of formulas whose fragments are of the form …
Nice formulas, $ xyx $-formulas, and palindrome patterns
P Ochem, M Rosenfeld - arXiv e-prints, 2020 - ui.adsabs.harvard.edu
We characterize the formulas that are avoided by every $\alpha $-free word for some
$\alpha> 1$. We study the avoidability index of formulas whose fragments are of the form …
$\alpha> 1$. We study the avoidability index of formulas whose fragments are of the form …