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Representation of rational functions with prefix and suffix codings. (English) Zbl 0823.68055
Summary: We proceed with the characterization of rational functions by means of restricted class of morphisms. Left subsequential transductions can be factored in an endmarking followed by an uniform morphism, the inverse of a prefix morphism and an alphabetic morphism. Rational functions require the inverse of a prefix morphism followed by the inverse of a suffix morphism.
68Q42 Grammars and rewriting systems
68Q45 Formal languages and automata
suffix morphism
Full Text: DOI
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