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Bibliographic Details
Main Authors: Tangpi, Ludovic, Wang, Shichun
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2405.02244
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author Tangpi, Ludovic
Wang, Shichun
author_facet Tangpi, Ludovic
Wang, Shichun
contents We present a simpler proof of the existence of equilibria for a class of mean field games with common noise, where players interact through the conditional law given the current value of the common noise rather than its entire path. By extending a compactness criterion for Malliavin-differentiable random variables to processes, we establish existence of strong equilibria, where the conditional law and optimal control are adapted to the common noise filtration and defined on the original probability space. Notably, our approach only requires measurability of the drift and cost functionals with respect to the state variable.
format Preprint
id arxiv_https___arxiv_org_abs_2405_02244
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Mean field games with common noise via Malliavin calculus
Tangpi, Ludovic
Wang, Shichun
Probability
91A16, 60H07
We present a simpler proof of the existence of equilibria for a class of mean field games with common noise, where players interact through the conditional law given the current value of the common noise rather than its entire path. By extending a compactness criterion for Malliavin-differentiable random variables to processes, we establish existence of strong equilibria, where the conditional law and optimal control are adapted to the common noise filtration and defined on the original probability space. Notably, our approach only requires measurability of the drift and cost functionals with respect to the state variable.
title Mean field games with common noise via Malliavin calculus
topic Probability
91A16, 60H07
url https://arxiv.org/abs/2405.02244