B\'uchi-Elgot-Trakhtenbrot Theorem for Higher-Dimensional Automata

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Teideal: B\'uchi-Elgot-Trakhtenbrot Theorem for Higher-Dimensional Automata
Údair: Amrane, Amazigh, Bazille, Hugo, Clement, Emily, Fahrenberg, Uli, Fortin, Marie, Ziemiański, Krzysztof
Bliain a fhoilsithe: 2025
Bailiúchán: Computer Science
Téarmaí ábhair: Computer Science - Formal Languages and Automata Theory
Cur síos: In this paper we explore languages of higher-dimensional automata (HDAs) from an algebraic and logical point of view. Such languages are sets of finite width-bounded interval pomsets with interfaces (ipomsets) closed under order extension. We show that ipomsets can be represented as equivalence classes of words over a particular alphabet, called step sequences. We introduce an automaton model that recognize such languages. Doing so allows us to lift the classical B\"uchi-Elgot-Trakhtenbrot Theorem to languages of HDAs: we prove that a set of interval ipomsets is the language of an HDA if and only if it is simultaneously MSO-definable, of bounded width, and closed under order refinement.
Cineál doiciméid: Working Paper
URL Rochtana: http://arxiv.org/abs/2505.10461
Uimhir Shealbhúcháin: edsarx.2505.10461
Bunachar sonraí: arXiv
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