Cyclic games and an algorithm to find minimax cycle means in directed graphs
USSR Computational Mathematics and Mathematical Physics
Cyclical games with prohibitions
Mathematical Programming: Series A and B
Some optimal inapproximability results
STOC '97 Proceedings of the twenty-ninth annual ACM symposium on Theory of computing
Total reward stochastic games and sensitive average reward strategies
Journal of Optimization Theory and Applications
Stochastic Shortest Path Games
SIAM Journal on Control and Optimization
Computers and Intractability: A Guide to the Theory of NP-Completeness
Computers and Intractability: A Guide to the Theory of NP-Completeness
Stochastic shortest path games: theory and algorithms
Stochastic shortest path games: theory and algorithms
On Short Paths Interdiction Problems: Total and Node-Wise Limited Interdiction
Theory of Computing Systems
Subgame Perfection in Positive Recursive Games with Perfect Information
Mathematics of Operations Research
On acyclicity of games with cycles
Discrete Applied Mathematics
Nash-solvable two-person symmetric cycle game forms
Discrete Applied Mathematics
Extending Dijkstra's algorithm to maximize the shortest path by node-wise limited arc interdiction
CSR'06 Proceedings of the First international computer science conference on Theory and Applications
A pumping algorithm for ergodic stochastic mean payoff games with perfect information
IPCO'10 Proceedings of the 14th international conference on Integer Programming and Combinatorial Optimization
Deterministic Graphical Games Revisited
Journal of Logic and Computation
Polynomial-Time algorithms for energy games with special weight structures
ESA'12 Proceedings of the 20th Annual European conference on Algorithms
Hi-index | 0.04 |
We study existence of Nash equilibria (NE) in pure stationary strategies in n-person positional games with no moves of chance, with perfect information, and with the mean or total effective cost function. We construct a NE-free three-person game with positive local costs, thus disproving the conjecture suggested in Boros and Gurvich (2003). Still, the following four problems remain open: Whether NE exist in all two-person games with total effective costs such that (I) all local costs are strictly positive or (II) there are no dicycles of the total cost zero? Whether NE exist in all n-person games with the terminal (transition-free) cost functions, provided all dicycles form a unique outcome c and (III) assuming that c is worse than any terminal outcome or (IV) without this assumption? For n=3 the case (I) (and hence (II)) is answered in the negative. This is the main result of the present paper. For n=2 the case (IV) (and hence (III)) was answered in the positive earlier. We briefly survey the above and some other negative and positive results on Nash-solvability in pure stationary strategies for the games under consideration.