当前位置: X-MOL 学术SIAM J. Discret. Math. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Enumerating Vertices of Covering Polyhedra with Totally Unimodular Constraint Matrices
SIAM Journal on Discrete Mathematics ( IF 0.9 ) Pub Date : 2020-03-23 , DOI: 10.1137/18m1198995
Khaled Elbassioni , Kazuhisa Makino

SIAM Journal on Discrete Mathematics, Volume 34, Issue 1, Page 843-864, January 2020.
We give an incremental polynomial time algorithm for enumerating the vertices of any polyhedron $P=P(A,\b1)=\{x\in \mathbb{R}^n \mid Ax\geq \b1,~x\geq \b0\}$, when $A$ is a totally unimodular matrix. Our algorithm is based on decomposing the hypergraph transversal problem for unimodular hypergraphs using Seymour's decomposition of totally unimodular matrices and may be of independent interest.


中文翻译:

用完全单模约束矩阵枚举覆盖多面体的顶点

SIAM离散数学杂志,第34卷,第1期,第843-864页,2020年1月。
我们给出了递增多项式时间算法,用于枚举任何多面体的顶点$ P = P(A,\ b1)= \ {x \ in当$ A $是一个完全单模矩阵时,\ mathbb {R} ^ n \ mid Ax \ geq \ b1,〜x \ geq \ b0 \} $。我们的算法基于使用完全单模矩阵的Seymour分解分解单模超图的超图横向问题,并且可能具有独立的意义。
更新日期:2020-03-23
down
wechat
bug