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arXiv · 2510.09280

Uniqueness of solutions to MFG systems with large discount

Marco Cirant·Elisa Continelli
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Abstract

We prove that solutions to a class of Mean Field Game systems with discount are unique provided that the discount factor is large enough, and the Lagrangian term is (proportionally) small enough. This identifies an asymptotic uniqueness regime that falls outside the usual ones involving monotonicity.

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Marco Cirant, Elisa Continelli. 2025-10-10. Uniqueness of solutions to MFG systems with large discount. https://arxiv.org/abs/2510.09280

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