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arXiv 1602.04231math.AP
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静止聚焦平均场对策

Stationary focusing Mean Field Games

Marco Cirant

摘要:

我们考虑了局部、递减和无界耦合情形下的平稳粘性平均场博弈系统。这些系统出现在遍历平均场对策论中,描述了大量以聚集为目标的代理博弈的纳什均衡。我们展示了状态空间的维数、耦合的行为和无穷远处的哈密顿量如何影响正则解的存在性和不存在性。我们的方法依赖于研究的Sobolev正则性的不变测度和爆破的过程,这是校准系统的标度特性。在非常特殊的情况下,我们观察到解的唯一性。最后,我们应用我们的方法获得新的存在性结果的MFG系统的竞争,即当耦合是本地和增加。

英文摘要:

We consider stationary viscous Mean-Field Games systems in the case of local, decreasing and unbounded coupling. These systems arise in ergodic mean-field game theory, and describe Nash equilibria of games with a large number of agents aiming at aggregation. We show how the dimension of the state space, the behavior of the coupling and the Hamiltonian at infinity affect the existence and non-existence of regular solutions. Our approach relies on the study of Sobolev regularity of the invariant measure and a blow-up procedure which is calibrated on the scaling properties of the system. In very special cases we observe uniqueness of solutions. Finally, we apply our methods to obtain new existence results for MFG systems with competition, namely when the coupling is local and increasing.

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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