On Conjugacy of Languages
Julien Cassaigne, Juhani Karhumäki, Ján Maňuch (2010)
RAIRO - Theoretical Informatics and Applications
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We say that two languages and are conjugates if they satisfy the for some language . We study several problems associated with this equation. For example, we characterize all sets which are conjugated a two-element biprefix set , as well as all two-element sets which are conjugates.