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cs.DM2022
On the rigidity of Arnoux-Rauzy words
Valérie Berthé, Svetlana Puzynina
An infinite word generated by a substitution is rigid if all the substitutions which fix this word are powers of a same substitution. Sturmian words as well as characteristic Arnou…
cs.DM2013
The finite index basis property
Valérie Berthé, Clelia De Felice, Francesco Dolce +4
We describe in this paper a connection between bifix codes, symbolic dynamical systems and free groups. This is in the spirit of the connection established previously for the symbo…