Graph minors. VI. Disjoint paths across a disc

Graph minors. VI. Disjoint paths across a disc
复制标题

图未成年人。

DOI:
10.1016/0095-8956(86)90031-6
复制
发表时间:
1986
期刊:
J. Comb. Theory, Ser. B
影响因子:
--
通讯作者:
P. Seymour
P. Seymour
中科院分区:
--
文献类型:
--
作者:
N. Robertson;P. Seymour

文献摘要

被引文献

相似文献

设G是在圆盘上绘制的图,并令圆盘边界上的顶点G为1,…,sk,t1,…,tkin某种顺序。何时分别存在Gjoiningsi和ti(1≤i≤k)的k顶点不相交路径?我们给出了这个问题的结构表征和多项式算法。当圆盘被气缸取代时,我们也解决了同样的问题。
LetGbe a graph drawn on a disc, and let the vertices ofGon the boundary of the disc bes1, …,sk,t1, …,tkin some order. When are therekvertex-disjoint paths ofGjoiningsiandti(1 ≤i≤k), respectively? We give a structural characterization and a polynomial algorithm for this problem. We also solve the same question when the disc is replaced by a cylinder.