Two-halfspace closure
Two-halfspace closure
复制标题
两半空间闭合
DOI:
10.1007/s10107-022-01802-x
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发表时间:
2022
影响因子:
2.7
通讯作者:
Jiang, Hongyi
中科院分区:
文献类型:
--
作者:
Basu, Amitabh;Jiang, Hongyi
We define a new cutting plane closure for pure integer programs called thetwo-halfspace closure. It is a natural generalization of the well-known Chvátal-Gomory closure. We prove that the two-halfspace closure is polyhedral. We also study the correspondingtwo-halfspace rankof any valid inequality and show that it is at most the split rank of the inequality. Moreover, while the split rank can be strictly larger than the two-halfspace rank, the split rank is at most twice the two-halfspace rank. A key step of our analysis shows that the split closure of a rational polyhedron can be obtained by considering the split closures of allk-dimensional (rational) projections of the polyhedron, for any fixed. This result may be of independent interest.
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影响因子:
1.1
作者:
R. Gomory
通讯作者:
R. Gomory
影响因子:
0.6
作者:
Jean
通讯作者:
Jean
影响因子:
2.7
作者:
David E. Bell;M. Fisher
通讯作者:
M. Fisher
影响因子:
2.7
作者:
S. Dash;O. Günlük;R. DiegoA.Morán
通讯作者:
R. DiegoA.Morán
DOI:
10.1137/s009753979528977x
发表时间:
1999
期刊:
SIAM J. Comput.
影响因子:
--
作者:
Warwick Harvey
通讯作者:
Warwick Harvey