The Non-Cooperative Rational Synthesis Problem for Subgame Perfect Equilibria and omega-regular Objectives

Fuente: arXiv
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Main Authors: Bruyère, Véronique, Raskin, Jean-François, Reynouard, Alexis, Bogaard, Marie Van Den
Format: Preprint
Published: 2024
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author Bruyère, Véronique
Raskin, Jean-François
Reynouard, Alexis
Bogaard, Marie Van Den
author_facet Bruyère, Véronique
Raskin, Jean-François
Reynouard, Alexis
Bogaard, Marie Van Den
contents This paper studies the rational synthesis problem for multi-player games played on graphs when rational players are following subgame perfect equilibria. In these games, one player, the system, declares his strategy upfront, and the other players, composing the environment, then rationally respond by playing strategies forming a subgame perfect equilibrium. We study the complexity of the rational synthesis problem when the players have ω-regular objectives encoded as parity objectives. Our algorithm is based on an encoding into a three-player game with imperfect information, showing that the problem is in 2ExpTime. When the number of environment players is fixed, the problem is in ExpTime and is NP- and coNP-hard. Moreover, for a fixed number of players and reachability objectives, we get a polynomial algorithm.
format Preprint
id arxiv_https___arxiv_org_abs_2412_08547
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle The Non-Cooperative Rational Synthesis Problem for Subgame Perfect Equilibria and omega-regular Objectives
Bruyère, Véronique
Raskin, Jean-François
Reynouard, Alexis
Bogaard, Marie Van Den
Computer Science and Game Theory
This paper studies the rational synthesis problem for multi-player games played on graphs when rational players are following subgame perfect equilibria. In these games, one player, the system, declares his strategy upfront, and the other players, composing the environment, then rationally respond by playing strategies forming a subgame perfect equilibrium. We study the complexity of the rational synthesis problem when the players have ω-regular objectives encoded as parity objectives. Our algorithm is based on an encoding into a three-player game with imperfect information, showing that the problem is in 2ExpTime. When the number of environment players is fixed, the problem is in ExpTime and is NP- and coNP-hard. Moreover, for a fixed number of players and reachability objectives, we get a polynomial algorithm.
title The Non-Cooperative Rational Synthesis Problem for Subgame Perfect Equilibria and omega-regular Objectives
topic Computer Science and Game Theory
url https://arxiv.org/abs/2412.08547