Displaying similar documents to “Fixpoints, games and the difference hierarchy”

Permissive strategies : from parity games to safety games

Julien Bernet, David Janin, Igor Walukiewicz (2002)

RAIRO - Theoretical Informatics and Applications - Informatique Théorique et Applications

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It is proposed to compare strategies in a parity game by comparing the sets of behaviours they allow. For such a game, there may be no winning strategy that encompasses all the behaviours of all winning strategies. It is shown, however, that there always exists a permissive strategy that encompasses all the behaviours of all memoryless strategies. An algorithm for finding such a permissive strategy is presented. Its complexity matches currently known upper bounds for the simpler problem...

Logical consequence and the theory of games

Paul Harrenstein (2004)

Philosophia Scientiae

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Logical notions of consequence have frequently been related to game-theoretical solution concepts. The correspondence between a formula being classically valid and the existence of a winning strategy for a player in a related two-person game, has been most prominent in this context. We propose a conservative extension of the classical notion of consequence that is based on a generalization of the game-theoretical solution concept of Nash equilibrium.

On knowledge games.

J. M. Lasry, J. M. Morel, S. Solimini (1989)

Revista Matemática de la Universidad Complutense de Madrid

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We give a formalization of the ?knowledge games? which allows to study their decidability and convergence as a problem of mathematics. Our approach is based on a metalemma analogous to those of Von Neumann and Morgenstern at the beginning of Game Theory. We are led to definitions which characterize the knowledge games as objects is standard set theory. We then study rigorously the most classical knowledge games and, although we also prove that the ?common knowledge? in these games may...

Two pile move-size dynamic Nim.

Holshouser, Arthur, Reiter, Harold (2005)

Discrete Mathematics and Theoretical Computer Science. DMTCS [electronic only]

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