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Cuts and semidefinite liftings for the complex cut polytope

Sinjorgo,Lennart
Sotirov,Renata
Anjos,M.F.
Abstract
We consider the complex cut polytope: the convex hull of Hermitian rank 1 matrices xx H, where the elements of x∈C n are mth unit roots. These polytopes have applications in MAX-3-CUT, digital communication technology, angular synchronization and more generally, complex quadratic programming. For m=2, the complex cut polytope corresponds to the well-known cut polytope. We generalize valid cuts for this polytope to cuts for any complex cut polytope with finite m>2 and provide a framework to compare them. Further, we consider a second semidefinite lifting of the complex cut polytope for m=∞. This lifting is proven to be equivalent to other complex Lasserre-type liftings of the same order proposed in the literature, while being of smaller size. Our theoretical findings are supported by numerical experiments on various optimization problems.
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Publisher Copyright: © The Author(s) 2024.
Date
2024-10
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Research Projects
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Keywords
Complex semidefinite programming, Complex cut polytope, Polyhedral combinatorics, MIMO, Angular synchronization
Citation
Sinjorgo, L, Sotirov, R & Anjos, M F 2024, 'Cuts and semidefinite liftings for the complex cut polytope', Mathematical Programming. https://doi.org/10.1007/s10107-024-02147-3
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