A1 Refereed original research article in a scientific journal
Winning Sets of Regular Languages: Descriptional and Computational Complexity
Authors: Marcus Pierre, Törmä Ilkka
Publisher: Institut fur Informatik, Justus-Liebig-Universitat Giessen
Publication year: 2023
Journal: Journal of Automata, Languages and Combinatorics
Journal name in source: Journal of Automata, Languages and Combinatorics
Volume: 28
Issue: 1-3
First page : 89
Last page: 120
DOI: https://doi.org/10.25596/jalc-2023-089
Web address : https://www.doi.org/10.25596/jalc-2023-089
We investigate certain word-construction games with variable turn orders. In these games, Alice and Bob take turns on choosing consecutive letters of a word of fixed length, with Alice winning if the result lies in a predetermined target language. The turn orders that result in a win for Alice form a binary language that is regular when-ever the target language is, and we prove some upper and lower bounds for its state complexity based on that of the target language. We also consider the computational complexity of membership and intersection problems of winning sets. © Institut für Informatik · Justus-Liebig-Universität Giessen.