A remark on morphic Sturmian words. (English) Zbl 0883.68104

Summary: This note deals with binary Sturmian words that are morphic, i.e. generated by iterating a morphism. Among these, characteristic words are a well-known subclass. We prove that for every characteristic morphic word \(x\), the four words \(ax\), \(bx\), \(abx\) and \(bax\) are morphic.


68R15 Combinatorics on words
68Q45 Formal languages and automata
Full Text: DOI EuDML


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