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Gapped Binomial Complexities in Sequences
Rigo, Michel; Stipulanti, Manon; Whiteland, Markus
2023In 2023 IEEE International Symposium on Information Theory (ISIT)
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Keywords :
combinatorics on words; gapped deck problem; gapped deck; gapped binomial coefficient; Thue-Morse; Sturmian words; gapped binomial complexity functions
Abstract :
[en] We relate the gapped $k$-deck problem introduced by Golm et al.~(ISIT 2022) to notions arising in the literature of combinatorics on words. We consider the complexity functions of infinite sequences that count the number of factors up to the equivalence relation of strings having equal gapped $k$-decks. We show that the Thue--Morse sequence, the fixed point of the substitution $0\mapsto 01$, $1 \mapsto 10$, has unbounded $1$-gap $k$-binomial complexity for $k \geq 2$. We also show that for a Sturmian sequence and $g \geq 1$, all of its long enough factors are always pairwise $g$-gap $k$-binomially inequivalent for any $k\geq 2$.
Disciplines :
Mathematics
Author, co-author :
Rigo, Michel  ;  Université de Liège - ULiège > Département de mathématique > Mathématiques discrètes
Stipulanti, Manon  ;  Université de Liège - ULiège > Département de mathématique > Mathématiques discrètes
Whiteland, Markus ;  Université de Liège - ULiège > Mathematics
Language :
English
Title :
Gapped Binomial Complexities in Sequences
Publication date :
2023
Event name :
ISIT 2023
Event place :
Tapei, Taiwan
Event date :
from 25 to 30 June 2023
Audience :
International
Main work title :
2023 IEEE International Symposium on Information Theory (ISIT)
Publisher :
IEEE
Pages :
1294-1299
Peer reviewed :
Peer reviewed
Funders :
F.R.S.-FNRS - Fonds de la Recherche Scientifique
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