1. Stabilizing Optimal Density Control of Nonlinear Agents with Multiplicative Noise
- Author
-
Kaivalya Bakshi, Piyush Grover, and Evangelos A. Theodorou
- Subjects
0209 industrial biotechnology ,FOS: Physical sciences ,Reversible diffusion ,Dynamical Systems (math.DS) ,02 engineering and technology ,01 natural sciences ,Stability (probability) ,Multiplicative noise ,010305 fluids & plasmas ,Mathematics - Analysis of PDEs ,020901 industrial engineering & automation ,Control theory ,0103 physical sciences ,FOS: Mathematics ,Mathematics - Dynamical Systems ,Mathematics - Optimization and Control ,Mathematical Physics ,Stochastic control ,Mathematical Physics (math-ph) ,Optimal control ,Nonlinear Sciences - Adaptation and Self-Organizing Systems ,Action (physics) ,Nonlinear system ,Optimization and Control (math.OC) ,Path integral formulation ,Adaptation and Self-Organizing Systems (nlin.AO) ,Analysis of PDEs (math.AP) - Abstract
Control of continuous time dynamics with multiplicative noise is a classic topic in stochastic optimal control. This work addresses the problem of designing infinite horizon optimal controls with stability guarantees for \textit{a single agent or large population systems} of identical, non-cooperative and non-networked agents, with multi-dimensional and nonlinear stochastic dynamics excited by multiplicative noise. For agent dynamics belonging to the class of reversible diffusion processes, we provide constraints on the state and control cost functions which guarantee stability of the closed-loop system under the action of the individual optimal controls. A condition relating the state-dependent control cost and volatility is introduced to prove the stability of the equilibrium density. This condition is a special case of the constraint required to use the path integral Feynman-Kac formula for computing the control. We investigate the connection between the stabilizing optimal control and the path integral formalism, leading us to a control law formulation expressed exclusively in terms of the desired equilibrium density., 6 pages, 0 figures, IEEE Conference on Decision and Control 2020 (accepted)
- Published
- 2020