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Linear quadratic mean field games: Decentralized $O(1/N)$-Nash equilibria

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 نشر من قبل Minyi Huang
 تاريخ النشر 2021
  مجال البحث
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This paper studies an asymptotic solvability problem for linear quadratic (LQ) mean field games with controlled diffusions and indefinite weights for the state and control in the costs. We employ a rescaling approach to derive a low dimensional Riccati ordinary differential equation (ODE) system, which characterizes a necessary and sufficient condition for asymptotic solvability. The rescaling technique is further used for performance estimates, establishing an $O(1/N)$-Nash equilibrium for the obtained decentralized strategies.



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