Title
Quadratic programs with hollows.
Abstract
Let \(\mathcal {F}\) be a quadratically constrained, possibly nonconvex, bounded set, and let \(\mathcal {E}_1, \ldots , \mathcal {E}_l\) denote ellipsoids contained in \(\mathcal {F}\) with non-intersecting interiors. We prove that minimizing an arbitrary quadratic \(q(\cdot )\) over \(\mathcal {G}:= \mathcal {F}{\setminus } \cup _{k=1}^\ell {{\mathrm{int}}}(\mathcal {E}_k)\) is no more difficult than minimizing \(q(\cdot )\) over \(\mathcal {F}\) in the following sense: if a given semidefinite-programming (SDP) relaxation for \(\min \{ q(x) : x \in \mathcal {F}\}\) is tight, then the addition of l linear constraints derived from \(\mathcal {E}_1, \ldots , \mathcal {E}_l\) yields a tight SDP relaxation for \(\min \{ q(x) : x \in \mathcal {G}\}\). We also prove that the convex hull of \(\{ (x,xx^T) : x \in \mathcal {G}\}\) equals the intersection of the convex hull of \(\{ (x,xx^T) : x \in \mathcal {F}\}\) with the same l linear constraints. Inspired by these results, we resolve a related question in a seemingly unrelated area, mixed-integer nonconvex quadratic programming.
Year
DOI
Venue
2018
10.1007/s10107-017-1157-0
Math. Program.
Keywords
Field
DocType
Nonconvex quadratic programming,Semidefinite programming,Convex hull,90C20,90C22,90C25,90C26,90C30
Discrete mathematics,Mathematical optimization,Quadratic growth,Combinatorics,Bounded set,Convex hull,Quadratic equation,Quadratic programming,Mathematics,Semidefinite programming
Journal
Volume
Issue
ISSN
170
2
0025-5610
Citations 
PageRank 
References 
1
0.36
17
Authors
3
Name
Order
Citations
PageRank
Boshi Yang1111.59
Kurt M. Anstreicher263386.40
Samuel Burer3114873.09