Decimations and sturmian words
Jacques Justin, Giuseppe Pirillo (1997)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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Jacques Justin, Giuseppe Pirillo (1997)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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Michelangelo Bucci, Aldo de Luca, Alessandro De Luca, Luca Q. Zamboni (2008)
RAIRO - Theoretical Informatics and Applications
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In this paper, we solve some open problems related to (pseudo)palindrome closure operators and to the infinite words generated by their iteration, that is, standard episturmian and pseudostandard words. We show that if is an involutory antimorphism of , then the right and left -palindromic closures of any factor of a -standard word are also factors of some -standard word. We also introduce the class of pseudostandard words with “seed”, obtained by iterated pseudopalindrome closure...
Jacques Justin, Giuseppe Pirillo (2002)
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications
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Here we give a characterization of Arnoux–Rauzy sequences by the way of the lexicographic orderings of their alphabet.