Analysis of the Finite-State Ergodic Master Equation

Analysis of the Finite-State Ergodic Master Equation
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有限状态遍历主方程的分析

DOI:
10.1007/s00245-022-09954-0
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发表时间:
2023
影响因子:
1.8
通讯作者:
Zell, Ethan
Zell, Ethan
中科院分区:
数学2区
文献类型:
--
作者:
Cohen, Asaf;Zell, Ethan

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平均场博弈将连续体博弈中的均衡模型作为博弈者之间弱相互作用的竞争者-博弈者博弈的限制系统。我们考虑一个有限状态,无限地平线问题的两个成本标准:折扣和遍历。在Lasry-Lions单调性条件下,我们将平稳遍历平均场博弈均衡刻画为一个由两个耦合方程组成的平均场博弈系统:一个是值方程,另一个是平稳测度方程.该系统与遍历主方程相联系。为了建立相应的折扣主方程,利用了几个折扣平均场对策系统。我们证明了折扣主方程是光滑的,一致的折扣因子。取折扣因子为零,我们实现了遍历主方程的光滑性。
Mean field games model equilibria in games with a continuum of players as limiting systems of symmetricn-player games with weak interaction between the players. We consider a finite-state, infinite-horizon problem with two cost criteria: discounted and ergodic. Under the Lasry–Lions monotonicity condition we characterize the stationary ergodic mean field game equilibrium by a mean field game system of two coupled equations: one for the value and the other for the stationary measure. This system is linked with the ergodic master equation. Several discounted mean field game systems are utilized in order to set up the relevant discounted master equations. We show that the discounted master equations are smooth, uniformly in the discount factor. Taking the discount factor to zero, we achieve the smoothness of the ergodic master equation.
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发表时间: 2015-12
影响因子: 2.4
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