arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 1006.0773math.OCcs.DMcs.DSmath.CO
收藏

二次Graver锥、二次极小化和扩展

The Quadratic Graver Cone, Quadratic Integer Minimization, and Extensions

Jon Lee, Shmuel Onn, Lyubov Romanchuk, Robert Weismantel

摘要:

研究了在变维整数点上极小化满足线性不等式的二次函数的非线性整数规划问题。我们证明了当定义系统的矩阵的Graver基给定,且二次函数位于一个合适的{ \em对偶Graver锥}中时,问题可以在多项式时间内求解.本文讨论了这一锥与正半定矩阵的锥之间的关系,并证明了二者互不包含。所以我们可以在多项式时间内最小化一些非凸和一些(包括所有可分的)凸二次曲面。最后,我们推广我们的结果,有效的整数最小化的任意次数的多元多项式函数躺在适当的锥。

英文摘要:

We consider the nonlinear integer programming problem of minimizing a quadratic function over the integer points in variable dimension satisfying a system of linear inequalities. We show that when the Graver basis of the matrix defining the system is given, and the quadratic function lies in a suitable {\em dual Graver cone}, the problem can be solved in polynomial time. We discuss the relation between this cone and the cone of positive semidefinite matrices, and show that none contains the other. So we can minimize in polynomial time some non-convex and some (including all separable) convex quadrics. We conclude by extending our results to efficient integer minimization of multivariate polynomial functions of arbitrary degree lying in suitable cones.

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。

↑