Binary Words Containing Few Abelian Squares

Fuente: arXiv
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Main Authors: Fazekas, Szilard Zsolt, Mammoliti, Adam, Mercas, Robert, Simpson, Jamie
Format: Preprint
Published: 2026
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_version_ 1866910165774630912
author Fazekas, Szilard Zsolt
Mammoliti, Adam
Mercas, Robert
Simpson, Jamie
author_facet Fazekas, Szilard Zsolt
Mammoliti, Adam
Mercas, Robert
Simpson, Jamie
contents Fici and Saarela ([2]) conjectured that a binary word of length n contains at least $\lfloor n/4 \rfloor$ abelian squares. We slightly extend this conjecture and show that it holds in some special cases. In all other cases we have the following: given a Parikh vector over a two letter alphabet we produce a word with that Parikh vector which we conjecture contains the least possible number of abelian squares.
format Preprint
id arxiv_https___arxiv_org_abs_2604_23188
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Binary Words Containing Few Abelian Squares
Fazekas, Szilard Zsolt
Mammoliti, Adam
Mercas, Robert
Simpson, Jamie
Combinatorics
Discrete Mathematics
G.2.1
Fici and Saarela ([2]) conjectured that a binary word of length n contains at least $\lfloor n/4 \rfloor$ abelian squares. We slightly extend this conjecture and show that it holds in some special cases. In all other cases we have the following: given a Parikh vector over a two letter alphabet we produce a word with that Parikh vector which we conjecture contains the least possible number of abelian squares.
title Binary Words Containing Few Abelian Squares
topic Combinatorics
Discrete Mathematics
G.2.1
url https://arxiv.org/abs/2604.23188