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Reports (Research Report) Year : 2010

k-overlap-free binary words

Abstract

We study k-overlap-free binary infinite words that are binary infinite words which can contain only overlaps xyxyx with |x| ≤ k-1. We prove that no such word can be generated by morphism, except if k = 1. On the other hand, for every k ≥ 2, there exist k-overlap-free binary infinite words which are not (k-1)-overlap-free. As an application, we prove that, for every integer n, there exists infinitely many k-overlap-free binary infinite partial words with n holes.
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Dates and versions

lirmm-00512255 , version 1 (29-08-2010)

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  • HAL Id : lirmm-00512255 , version 1

Cite

Patrice Séébold. k-overlap-free binary words. [Research Report] RR-10031, Lirmm. 2010. ⟨lirmm-00512255⟩
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