B\"uchi-like characterizations for Parikh-recognizable omega-languages
Abstract
B\"uchi's theorem states that -regular languages are characterized as languages of the form , where and are regular languages. Parikh automata are automata on finite words whose transitions are equipped with vectors of positive integers, whose sum can be tested for membership in a given semi-linear set. We give an intuitive automata theoretic characterization of languages of the form , where and are Parikh-recognizable. Furthermore, we show that the class of such languages, where is Parikh-recognizable and is regular is exactly captured by a model proposed by Klaedtke and Ruess [Automata, Languages and Programming, 2003], which again is equivalent to (a small modification of) reachability Parikh automata introduced by Guha et al. [FSTTCS, 2022]. We finish this study by introducing a model that captures exactly such languages for regular and Parikh-recognizable .
Cite
@article{arxiv.2302.04087,
title = {B\"uchi-like characterizations for Parikh-recognizable omega-languages},
author = {Mario Grobler and Sebastian Siebertz},
journal= {arXiv preprint arXiv:2302.04087},
year = {2023}
}