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arXiv 1003.4277cs.GT
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纯鞍点与对称相对支付博弈

Pure Saddle Points and Symmetric Relative Payoff Games

Peter Duersch, Joerg Oechssler, Burkhard C. Schipper

摘要:

众所周知,石头剪刀布游戏没有纯鞍点。我们证明了这一点更普遍地成立:对称的两人零和博弈有一个纯鞍点当且仅当它不是一个广义的石头剪刀布博弈。此外,我们证明了每个有限对称拟凹二人零和对策都有一个纯鞍点。进一步提供了存在的充分条件。我们将我们的理论应用到丰富的例子中,注意到对称的两个玩家零和游戏类与对称的两个玩家游戏相关的相对收益游戏类相吻合。这使我们能够得到有限种群进化稳定策略的存在性结果。

英文摘要:

It is well known that the rock-paper-scissors game has no pure saddle point. We show that this holds more generally: A symmetric two-player zero-sum game has a pure saddle point if and only if it is not a generalized rock-paper-scissors game. Moreover, we show that every finite symmetric quasiconcave two-player zero-sum game has a pure saddle point. Further sufficient conditions for existence are provided. We apply our theory to a rich collection of examples by noting that the class of symmetric two-player zero-sum games coincides with the class of relative payoff games associated with symmetric two-player games. This allows us to derive results on the existence of a finite population evolutionary stable strategies.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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