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Bibliographic Details
Main Authors: Wang, Shanting, Sun, Weihao, Malikopoulos, Andreas A.
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2604.02619
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author Wang, Shanting
Sun, Weihao
Malikopoulos, Andreas A.
author_facet Wang, Shanting
Sun, Weihao
Malikopoulos, Andreas A.
contents In this paper, we present an online learning approach for two-player zero-sum linear quadratic games with unknown dynamics. We develop a framework combining regularized least squares model estimation, high probability confidence sets, and surrogate model selection to maintain a regular model for policy updates. We apply a shrinkage step at each episode to identify a surrogate model in the region where the generalized algebraic Riccati equation admits a stabilizing saddle point solution. We then establish regret analysis on algorithm convergence, followed by a numerical example to illustrate the convergence performance and verify the regret analysis.
format Preprint
id arxiv_https___arxiv_org_abs_2604_02619
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle An Online Learning Approach for Two-Player Zero-Sum Linear Quadratic Games
Wang, Shanting
Sun, Weihao
Malikopoulos, Andreas A.
Systems and Control
In this paper, we present an online learning approach for two-player zero-sum linear quadratic games with unknown dynamics. We develop a framework combining regularized least squares model estimation, high probability confidence sets, and surrogate model selection to maintain a regular model for policy updates. We apply a shrinkage step at each episode to identify a surrogate model in the region where the generalized algebraic Riccati equation admits a stabilizing saddle point solution. We then establish regret analysis on algorithm convergence, followed by a numerical example to illustrate the convergence performance and verify the regret analysis.
title An Online Learning Approach for Two-Player Zero-Sum Linear Quadratic Games
topic Systems and Control
url https://arxiv.org/abs/2604.02619