Finite Convergence of the Moment-SOS Hierarchy on the Product of Spheres

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Hauptverfasser: Halaseh, Sami, Magron, Victor, Skomra, Mateusz
Format: Preprint
Veröffentlicht: 2025
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author Halaseh, Sami
Magron, Victor
Skomra, Mateusz
author_facet Halaseh, Sami
Magron, Victor
Skomra, Mateusz
contents We study the polynomial optimization problem of minimizing a multihomogeneous polynomial over the product of spheres. This polynomial optimization problem models the tensor optimization problem of finding the best rank one approximation of an arbitrary tensor. We show that the moment-SOS hierarchy has finite convergence in this case, for a generic multihomogeneous objective function. To show finite convergence of the hierarchy, we use a result of Huang et al. [SIAM J. Optim. 34(4) (2024), pp 3399-3428], which relies on local optimality conditions. To prove that the local optimality conditions hold generically, we use techniques from differential geometry and Morse theory. This work generalizes the main result of Huang [Optim. Lett. 17(5) (2023), pp 1263-1270], which shows finite convergence for the case of a homogeneous polynomial over a single sphere.
format Preprint
id arxiv_https___arxiv_org_abs_2512_11119
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Finite Convergence of the Moment-SOS Hierarchy on the Product of Spheres
Halaseh, Sami
Magron, Victor
Skomra, Mateusz
Optimization and Control
Algebraic Geometry
Differential Geometry
90C23, 15A69, 53Z99, 14P10
We study the polynomial optimization problem of minimizing a multihomogeneous polynomial over the product of spheres. This polynomial optimization problem models the tensor optimization problem of finding the best rank one approximation of an arbitrary tensor. We show that the moment-SOS hierarchy has finite convergence in this case, for a generic multihomogeneous objective function. To show finite convergence of the hierarchy, we use a result of Huang et al. [SIAM J. Optim. 34(4) (2024), pp 3399-3428], which relies on local optimality conditions. To prove that the local optimality conditions hold generically, we use techniques from differential geometry and Morse theory. This work generalizes the main result of Huang [Optim. Lett. 17(5) (2023), pp 1263-1270], which shows finite convergence for the case of a homogeneous polynomial over a single sphere.
title Finite Convergence of the Moment-SOS Hierarchy on the Product of Spheres
topic Optimization and Control
Algebraic Geometry
Differential Geometry
90C23, 15A69, 53Z99, 14P10
url https://arxiv.org/abs/2512.11119