A deterministic subexponential algorithm for solving parity games

  • Authors:
  • Marcin Jurdziński;Mike Paterson;Uri Zwick

  • Affiliations:
  • University of Warwick, United Kingdom;University of Warwick, United Kingdom;Tel Aviv University, Tel Aviv, Israel

  • Venue:
  • SODA '06 Proceedings of the seventeenth annual ACM-SIAM symposium on Discrete algorithm
  • Year:
  • 2006

Quantified Score

Hi-index 0.00

Visualization

Abstract

The existence of polynomial time algorithms for the solution of parity games is a major open problem. The fastest known algorithms for the problem are randomized algorithms that run in subexponential time. These algorithms are all ultimately based on the randomized subexponential simplex algorithms of Kalai and of Matoušek, Sharir and Welzl. Randomness seems to play an essential role in these algorithms. We use a completely different, and elementary, approach to obtain a deterministic subexponential algorithm for the solution of parity games. Our deterministic algorithm is almost as fast as the randomized algorithms mentioned above.