KLÍMA, Ondřej and Libor POLÁK. On Biautomata. In Rudolf Freund, Markus Holzer, Carlo Mereghetti, Friedrich Otto, Beatrice Palano. Non-Classical Models for Automata and Applications. Austrian Computer Society, 2011, p. 153-164. ISBN 978-3-85403-282-3.
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Basic information
Original name On Biautomata
Authors KLÍMA, Ondřej and Libor POLÁK.
Edition Non-Classical Models for Automata and Applications, p. 153-164, 12 pp. 2011.
Publisher Austrian Computer Society
Other information
Original language English
Type of outcome Proceedings paper
Field of Study 10101 Pure mathematics
Country of publisher Austria
Confidentiality degree is not subject to a state or trade secret
Organization unit Faculty of Science
ISBN 978-3-85403-282-3
UT WoS 000310757900007
Tags International impact, Reviewed
Changed by Changed by: doc. Mgr. Ondřej Klíma, Ph.D., učo 3868. Changed: 21/11/2011 16:38.
Abstract
We initiate the theory and applications of biautomata. A biautomaton can read a word alternately from the left and from the right. We assign to each regular language L its canonical biautomaton. This structure plays, among all biautomata recognizing the language L, the same role as the minimal deterministic automaton has among all deterministic automata recognizing the language L. We expect that from the graph structure of this automaton one could decide the membership of a given language to certain signicant classes of languages. We present the rst result of this kind: a language L is piecewise testable if and only if the canonical biautomaton of L is acyclic. From this result the famous Simon's characterization of piecewise testable languages easily follows.
Links
GA201/09/1313, research and development projectName: Algebraické metody v teorii automatů a formálních jazyků II
Investor: Czech Science Foundation, Algebraic Methods in Automata and Formal Language Theory II
MSM0021622409, plan (intention)Name: Matematické struktury a jejich fyzikální aplikace
Investor: Ministry of Education, Youth and Sports of the CR, Mathematical structures and their physical applications
1M0545, research and development projectName: Institut Teoretické Informatiky
Investor: Ministry of Education, Youth and Sports of the CR, Institute for Theoretical Computer Science
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