Lower Bound for the Number of Iterations in Semidefinite Hierarchies for the Cut Polytope

Lower Bound for the Number of Iterations in Semidefinite Hierarchies for the Cut Polytope
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切割多面体半定层次结构中迭代次数的下界

DOI:
10.1287/moor.28.4.871.20508
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发表时间:
2003
期刊:
Math. Oper. Res.
影响因子:
--
通讯作者:
M. Laurent
M. Laurent
中科院分区:
--
文献类型:
--
作者:
M. Laurent

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Lasserre (2001a) 以及 LovAisz 和 Schrijver (1991) 构建了 0/1 多面体的半定松弛层次结构。 n 个节点上的图的切割多面体可以表示为最多 n 个步骤之后的这种半定松弛的投影。我们证明需要 [ n/2] 次迭代才能找到完整图 K n 的切割多胞形。
Hierarchies of semidefinite relaxations for 0/1 polytopes have been constructed by Lasserre (2001a) and by LovAisz and Schrijver (1991). The cut polytope of a graph onn nodes can be expressed as a projection of such a semidefinite relaxation after at mostn steps. We show that [ n/2] iterations are needed for finding the cut polytope of the complete graphK n .