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math.CO2011★ 1 cited
Central sets defined by words of low factor complexity
Michelangelo Bucci, Svetlana Puzynina, Luca Q. Zamboni
A subset of is called an IP-set if contains all finite sums of distinct terms of some infinite sequence of natural numbers. Central…
cs.FL2011
Abelian returns in Sturmian words
Svetlana Puzynina, Luca Q. Zamboni
In this paper we study an abelian version of the notion of return word. Our main result is a new characterization of Sturmian words via abelian returns. Namely, we prove that a wor…