Lookahead Games and Efficient Determinisation of History-Deterministic Büchi Automata

Fuente: arXiv
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Main Authors: Acharya, Rohan, Jurdziński, Marcin, Prakash, Keya
Format: Preprint
Published: 2024
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author Acharya, Rohan
Jurdziński, Marcin
Prakash, Keya
author_facet Acharya, Rohan
Jurdziński, Marcin
Prakash, Keya
contents Our main technical contribution is a polynomial-time determinisation procedure for history-deterministic Büchi automata, which settles an open question of Kuperberg and Skrzypczak, 2015. A key conceptual contribution is the lookahead game, which is a variant of Bagnol and Kuperberg's token game, in which Adam is given a fixed lookahead. We prove that the lookahead game is equivalent to the 1-token game. This allows us to show that the 1-token game characterises history-determinism for semantically-deterministic Büchi automata, which paves the way to our polynomial-time determinisation procedure.
format Preprint
id arxiv_https___arxiv_org_abs_2404_17530
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Lookahead Games and Efficient Determinisation of History-Deterministic Büchi Automata
Acharya, Rohan
Jurdziński, Marcin
Prakash, Keya
Formal Languages and Automata Theory
Our main technical contribution is a polynomial-time determinisation procedure for history-deterministic Büchi automata, which settles an open question of Kuperberg and Skrzypczak, 2015. A key conceptual contribution is the lookahead game, which is a variant of Bagnol and Kuperberg's token game, in which Adam is given a fixed lookahead. We prove that the lookahead game is equivalent to the 1-token game. This allows us to show that the 1-token game characterises history-determinism for semantically-deterministic Büchi automata, which paves the way to our polynomial-time determinisation procedure.
title Lookahead Games and Efficient Determinisation of History-Deterministic Büchi Automata
topic Formal Languages and Automata Theory
url https://arxiv.org/abs/2404.17530