Decomposition and Successive Decomposition Methods and Algorithms for Nonconvex Optimization

Fuente: arXiv
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Autores principales: Zhai, Yiqing, Cui, Ying, Tsang, Danny H. K.
Formato: Preprint
Publicado: 2026
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author Zhai, Yiqing
Cui, Ying
Tsang, Danny H. K.
author_facet Zhai, Yiqing
Cui, Ying
Tsang, Danny H. K.
contents Existing results on decomposition methods and algorithms for nonconvex problems are minimal. Parallel decomposition algorithms do not exist for nonconvex problems with coupling nonlinear equality constraints. Besides, decomposition structures (i.e., coupling variables and constraints) are not fully exploited in designing decomposition methods and algorithms. In this paper, we consider nonconvex problems with decomposition structures that are more general than those handled in the existing literature. We propose primal and dual decomposition and successive primal and successive dual decomposition methods and algorithms for these nonconvex problems, which exploit decomposition structures, allow for parallel and distributed implementations, produce the original nonconvex problems' stationary points, and offer good opportunities to achieve superior tradeoff between convergence performance and computation time. Finally, we compare the proposed methods and algorithms, extend them to indirect and two-level decomposition methods and algorithms, and provide examples and numerical results to demonstrate their respective values. Notably, the proposed decomposition and successive decomposition methods and algorithms generalize the basic ones for convex problems, and the proposed successive decomposition methods and algorithms extend the existing ones for nonconvex problems, together enriching the decomposition theory.
format Preprint
id arxiv_https___arxiv_org_abs_2605_15594
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Decomposition and Successive Decomposition Methods and Algorithms for Nonconvex Optimization
Zhai, Yiqing
Cui, Ying
Tsang, Danny H. K.
Optimization and Control
Existing results on decomposition methods and algorithms for nonconvex problems are minimal. Parallel decomposition algorithms do not exist for nonconvex problems with coupling nonlinear equality constraints. Besides, decomposition structures (i.e., coupling variables and constraints) are not fully exploited in designing decomposition methods and algorithms. In this paper, we consider nonconvex problems with decomposition structures that are more general than those handled in the existing literature. We propose primal and dual decomposition and successive primal and successive dual decomposition methods and algorithms for these nonconvex problems, which exploit decomposition structures, allow for parallel and distributed implementations, produce the original nonconvex problems' stationary points, and offer good opportunities to achieve superior tradeoff between convergence performance and computation time. Finally, we compare the proposed methods and algorithms, extend them to indirect and two-level decomposition methods and algorithms, and provide examples and numerical results to demonstrate their respective values. Notably, the proposed decomposition and successive decomposition methods and algorithms generalize the basic ones for convex problems, and the proposed successive decomposition methods and algorithms extend the existing ones for nonconvex problems, together enriching the decomposition theory.
title Decomposition and Successive Decomposition Methods and Algorithms for Nonconvex Optimization
topic Optimization and Control
url https://arxiv.org/abs/2605.15594