Distributionally Robust Nash Equilibria via Variational Inequalities

Fuente: arXiv
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Main Authors: Alizadeh, Zeinab, Farsi, Azadeh, Jalilzadeh, Afrooz
Format: Preprint
Published: 2025
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author Alizadeh, Zeinab
Farsi, Azadeh
Jalilzadeh, Afrooz
author_facet Alizadeh, Zeinab
Farsi, Azadeh
Jalilzadeh, Afrooz
contents Nash Equilibrium and its robust counterpart, Distributionally Robust Nash Equilibrium (DRNE), are fundamental problems in game theory with applications in economics, engineering, and machine learning. This paper addresses the problem of DRNE, where multiple players engage in a noncooperative game under uncertainty. Each player aims to minimize their objective against the worst-case distribution within an ambiguity set, resulting in a minimax structure. We reformulate the DRNE problem as a Variational Inequality (VI) problem, providing a unified framework for analysis and algorithm development. We propose a gradient descent-ascent type algorithm with convergence guarantee that effectively addresses the computational challenges of high-dimensional and nonsmooth objectives.
format Preprint
id arxiv_https___arxiv_org_abs_2510_17024
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Distributionally Robust Nash Equilibria via Variational Inequalities
Alizadeh, Zeinab
Farsi, Azadeh
Jalilzadeh, Afrooz
Optimization and Control
Nash Equilibrium and its robust counterpart, Distributionally Robust Nash Equilibrium (DRNE), are fundamental problems in game theory with applications in economics, engineering, and machine learning. This paper addresses the problem of DRNE, where multiple players engage in a noncooperative game under uncertainty. Each player aims to minimize their objective against the worst-case distribution within an ambiguity set, resulting in a minimax structure. We reformulate the DRNE problem as a Variational Inequality (VI) problem, providing a unified framework for analysis and algorithm development. We propose a gradient descent-ascent type algorithm with convergence guarantee that effectively addresses the computational challenges of high-dimensional and nonsmooth objectives.
title Distributionally Robust Nash Equilibria via Variational Inequalities
topic Optimization and Control
url https://arxiv.org/abs/2510.17024