Morphisms fixing words associated with exchange of three intervals
RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 44 (2010) no. 1, pp. 3-17.

We consider words coding exchange of three intervals with permutation (3,2,1), here called 3iet words. Recently, a characterization of substitution invariant 3iet words was provided. We study the opposite question: what are the morphisms fixing a 3iet word? We reveal a narrow connection of such morphisms and morphisms fixing sturmian words using the new notion of amicability.

DOI : 10.1051/ita/2010002
Classification : 68R15, 08A50
Mots-clés : interval exchange transformation, sturmian morphisms, substitution invariance 
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     title = {Morphisms fixing words associated with exchange of three intervals},
     journal = {RAIRO - Theoretical Informatics and Applications - Informatique Th\'eorique et Applications},
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Ambrož, Petr; Masáková, Zuzana; Pelantová, Edita. Morphisms fixing words associated with exchange of three intervals. RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications, Tome 44 (2010) no. 1, pp. 3-17. doi : 10.1051/ita/2010002. http://www.numdam.org/articles/10.1051/ita/2010002/

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