Displaying similar documents to “On extending endomorphisms to automorphisms.”

Equational description of pseudovarieties of homomorphisms

Michal Kunc (2003)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

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The notion of pseudovarieties of homomorphisms onto finite monoids was recently introduced by Straubing as an algebraic characterization for certain classes of regular languages. In this paper we provide a mechanism of equational description of these pseudovarieties based on an appropriate generalization of the notion of implicit operations. We show that the resulting metric monoids of implicit operations coincide with the standard ones, the only difference being the actual interpretation...

Automata and categories

Symeon Bozapalides, Anestis Firarides (1982)

Cahiers de Topologie et Géométrie Différentielle Catégoriques

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