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2016•Russian MathematicsRequires access

Automata transformations of prefix decidable and decidable by Buchi superwords

N. N. Korneeva

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Abstract

We show that the set of prefix decidable superwords is closed under finite automata and asynchronous automata transformations. We prove that structures of degrees of finite automata and asynchronous automata transformations contain an atom which consists of prefix decidable superwords with undecidable monadic theory (or undecidable by Buchi). Also we prove that the structure of degrees of asynchronous automata transformations contains an atom which consists of superwords with decidable monadic theory (decidable by Buchi).

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What this paper is about

We show that the set of prefix decidable superwords is closed under finite automata and asynchronous automata transformations. We prove that structures of degrees of finite automata and asynchronous automata transformations contain an atom which consists of prefix decidable superwords with undecidable monadic theory (or undecidable by Buchi). Also we prove that the structure of degrees of asynchronous automata transformations contains an atom which consists of superwords with decidable monadic theory (decidable by Buchi).

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Available abstract

We show that the set of prefix decidable superwords is closed under finite automata and asynchronous automata transformations. We prove that structures of degrees of finite automata and asynchronous automata transformations contain an atom which consists of prefix decidable superwords with undecidable monadic theory (or undecidable by Buchi). Also we prove that the structure of degrees of asynchronous automata transformations contains an atom which consists of superwords with decidable monadic theory (decidable by Buchi).

Key concepts: Decidability, Undecidable problem, Discrete mathematics, Mathematics, Prefix, Automaton, Combinatorics, Computer science

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