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arXiv 2403.04752math.OC
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关于二次规划凸包的半定描述

On semidefinite descriptions for convex hulls of quadratic programs

Alex L. Wang, Fatma Kilinc-Karzan

AI总结:

本文研究二次约束二次规划(QCQP)上图凸包与SDP松弛投影上图重合的条件,提出了基于凸拉格朗日乘子锥几何性质的凸包精确性充分条件,并证明在额外几何假设下该条件亦为必要。

摘要:

二次约束二次规划(QCQP)是一类表达能力极强的非凸优化问题。尽管 QCQP 一般情况下是 NP-hard 的,但它们可以通过标准的半定规划(SDP)松弛获得一种自然的凸松弛。在本文中,我们研究 QCQP 上图的凸包何时与 SDP 松弛的投影上图相重合。我们提出了凸包精确性的一个充分条件,并证明在额外的几何假设下,该条件进一步成为必要条件。该充分条件基于 $Γ$(凸拉格朗日乘子锥)及其相关集合 $Γ_1$ 和 $Γ^\circ$ 的几何性质。

英文摘要:

Quadratically constrained quadratic programs (QCQPs) are a highly expressive class of nonconvex optimization problems. While QCQPs are NP-hard in general, they admit a natural convex relaxation via the standard semidefinite program (SDP) relaxation. In this paper we study when the convex hull of the epigraph of a QCQP coincides with the projected epigraph of the SDP relaxation. We present a sufficient condition for convex hull exactness and show that this condition is further necessary under an additional geometric assumption. The sufficient condition is based on geometric properties of $Γ$, the cone of convex Lagrange multipliers, and its relatives $Γ_1$ and $Γ^\circ$.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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