Feedback control of Lagrange multipliers for non-smooth constrained optimization

Fuente: arXiv
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Autori principali: Cerone, V., Fosson, S. M., Pirrera, S., Re, A., Regruto, D.
Natura: Preprint
Pubblicazione: 2026
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author Cerone, V.
Fosson, S. M.
Pirrera, S.
Re, A.
Regruto, D.
author_facet Cerone, V.
Fosson, S. M.
Pirrera, S.
Re, A.
Regruto, D.
contents In this work, we develop a control-theoretic framework for constrained optimization problems with composite objective functions including non-differentiable terms. Building on the proximal augmented Lagrangian formulation, we construct a plant whose equilibria correspond to the stationary points of the optimization problem. Within this framework, we propose two control strategies - a static controller and a dynamic controller - leading to two novel optimization algorithms. We provide a theoretical analysis, establishing global exponential convergence under strong convexity assumptions. Finally, we demonstrate the effectiveness of the proposed methods through numerical experiments, benchmarking their performance against state-of-the-art approaches.
format Preprint
id arxiv_https___arxiv_org_abs_2604_06511
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Feedback control of Lagrange multipliers for non-smooth constrained optimization
Cerone, V.
Fosson, S. M.
Pirrera, S.
Re, A.
Regruto, D.
Optimization and Control
Systems and Control
In this work, we develop a control-theoretic framework for constrained optimization problems with composite objective functions including non-differentiable terms. Building on the proximal augmented Lagrangian formulation, we construct a plant whose equilibria correspond to the stationary points of the optimization problem. Within this framework, we propose two control strategies - a static controller and a dynamic controller - leading to two novel optimization algorithms. We provide a theoretical analysis, establishing global exponential convergence under strong convexity assumptions. Finally, we demonstrate the effectiveness of the proposed methods through numerical experiments, benchmarking their performance against state-of-the-art approaches.
title Feedback control of Lagrange multipliers for non-smooth constrained optimization
topic Optimization and Control
Systems and Control
url https://arxiv.org/abs/2604.06511