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arXiv 1202.1930math.PR
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Dynkin游戏一般框架

Dynkin games in a general framework

Magdalena Kobylanski, Marie-Claire Quenez, Marc Roger de Campagnolle

摘要:

我们在一个一般的框架下重新审视Dynkin博弈问题,改进了经典的结果,并放宽了一些假设。该准则表示为以停时为指标的随机变量族。构造了两个非负上鞅族$J$和$J'$,它们的有限性等价于Mokobodski条件.在弱右正则性假设下,证明了博弈是公平的,并且证明了$J-J'$是公共价值函数.在一些较弱的附加假设下,得到了鞍点的存在性。所有的结果都是用随机变量表示的,并且只用概率论的经典结果证明。

英文摘要:

We revisit the Dynkin game problem in a general framework, improve classical results and relax some assumptions. The criterion is expressed in terms of families of random variables indexed by stopping times. We construct two nonnegative supermartingales families $J$ and $J'$ whose finitness is equivalent to the Mokobodski's condition. Under some weak right-regularity assumption, the game is shown to be fair and $J-J'$ is shown to be the common value function. Existence of saddle points is derived under some weak additional assumptions. All the results are written in terms of random variables and are proven by using only classical results of probability theory.

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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