Splitting conditions for classes of meet automata

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Authors	KLÍMA Ondřej POLÁK Libor
Year of publication	2007
Type	Article in Proceedings
Conference	Proceedings AutoMathA 2007, June 18-22, 2007, Palermo, Italy (CD)
MU Faculty or unit	Faculty of Science
Citation
Field	General mathematics
Keywords	varieties of languages; meet automata; universal automata
Description	In a recent paper we introduced meet automata as a new (algebraic) concept for studying natural classes of languages. We factorized the most general Eilenberg-type theorem through varieties of meet automata. The only syntactic presentation of such classes was the usage of pseudoidentities on transformation semirings of such automata. Here we present a new type of conditions suitable for identification of classes of meet automata. We found rich hierarchies of such classes, several of them related to the reversible automata.
Related projects:	Mathematical structures and their physical applications Algebraic Methods in Automata and Formal Language Theory