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Main Authors: Liu, Chang, Fan, Hongtao, Li, Yajing
Format: Preprint
Published: 2024
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Online Access:https://arxiv.org/abs/2412.16538
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author Liu, Chang
Fan, Hongtao
Li, Yajing
author_facet Liu, Chang
Fan, Hongtao
Li, Yajing
contents This paper addresses a class of two-person zero-sum stochastic differential equations, which encompass Markov chains and fractional Brownian motion, and satisfy some monotonicity conditions over an infinite time horizon. Within the framework of forward-backward stochastic differential equations (FBSDEs) that describe system evolution, we extend the classical It$\rm\hat{o}$'s formula to accommodate complex scenarios involving Brownian motion, fractional Brownian motion, and Markov chains simultaneously. By applying the Banach fixed-point theorem and approximation methods respectively, we theoretically guarantee the existence and uniqueness of solutions for FBSDEs in infinite horizon. Furthermore, we apply the method for the first time to the optimal control problem in a two-player zero-sum game, deriving the optimal control strategies for both players by solving the FBSDEs system. Finally, we conduct an analysis of the impact of the cross-term $S(\cdot)$ in the cost function on the solution, revealing its crucial role in the optimization process.
format Preprint
id arxiv_https___arxiv_org_abs_2412_16538
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Two-person zero-sum stochastic linear quadratic control problems with Markov chains and fractional Brownian motion in infinite horizon
Liu, Chang
Fan, Hongtao
Li, Yajing
Optimization and Control
This paper addresses a class of two-person zero-sum stochastic differential equations, which encompass Markov chains and fractional Brownian motion, and satisfy some monotonicity conditions over an infinite time horizon. Within the framework of forward-backward stochastic differential equations (FBSDEs) that describe system evolution, we extend the classical It$\rm\hat{o}$'s formula to accommodate complex scenarios involving Brownian motion, fractional Brownian motion, and Markov chains simultaneously. By applying the Banach fixed-point theorem and approximation methods respectively, we theoretically guarantee the existence and uniqueness of solutions for FBSDEs in infinite horizon. Furthermore, we apply the method for the first time to the optimal control problem in a two-player zero-sum game, deriving the optimal control strategies for both players by solving the FBSDEs system. Finally, we conduct an analysis of the impact of the cross-term $S(\cdot)$ in the cost function on the solution, revealing its crucial role in the optimization process.
title Two-person zero-sum stochastic linear quadratic control problems with Markov chains and fractional Brownian motion in infinite horizon
topic Optimization and Control
url https://arxiv.org/abs/2412.16538