Mean Field Games with Reflected Dynamics: Penalization and Relaxed Control Approach

Fuente: arXiv
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Main Authors: Laayoun, Ayoub, Missaoui, Badr
Format: Preprint
Published: 2026
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author Laayoun, Ayoub
Missaoui, Badr
author_facet Laayoun, Ayoub
Missaoui, Badr
contents In this paper, we investigate a class of Mean Field Games (MFGs) in which the state dynamics are governed by multidimensional reflected stochastic differential equations (SDEs). We establish the existence of an equilibrium and show that it can be approximated by the equilibrium of MFGs with non-reflected SDE. This approximation is constructed via a penalization method combined with the relaxed control approach introduced in [21]. Under a uniform ellipticity condition, and by applying the penalization method together with the mimicking theorem, we prove the existence of a Markovian MFG. Furthermore, under an additional convexity assumption, we demonstrate the existence of a strict-Markovian MFG. In the general case, we prove that relaxed MFG solutions with reflected dynamics can be approximated by strict controls whose dynamics are governed by penalized SDEs.
format Preprint
id arxiv_https___arxiv_org_abs_2603_15477
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Mean Field Games with Reflected Dynamics: Penalization and Relaxed Control Approach
Laayoun, Ayoub
Missaoui, Badr
Probability
In this paper, we investigate a class of Mean Field Games (MFGs) in which the state dynamics are governed by multidimensional reflected stochastic differential equations (SDEs). We establish the existence of an equilibrium and show that it can be approximated by the equilibrium of MFGs with non-reflected SDE. This approximation is constructed via a penalization method combined with the relaxed control approach introduced in [21]. Under a uniform ellipticity condition, and by applying the penalization method together with the mimicking theorem, we prove the existence of a Markovian MFG. Furthermore, under an additional convexity assumption, we demonstrate the existence of a strict-Markovian MFG. In the general case, we prove that relaxed MFG solutions with reflected dynamics can be approximated by strict controls whose dynamics are governed by penalized SDEs.
title Mean Field Games with Reflected Dynamics: Penalization and Relaxed Control Approach
topic Probability
url https://arxiv.org/abs/2603.15477