Sources and Sinks in Comparability Graphs

被引：0

作者：

Celina M. H. de Figueiredo

John Gimbel

Célia P. Mello

Jayme L. Szwarcfiter

机构：

[1] Universidade Federal do Rio de Janeiro,Instituto de Matemática

[2] Mathematical Sciences,undefined

[3] University of Alaska,undefined

[4] Instituto de Computação,undefined

[5] Universidade Estadual de Campinas,undefined

[6] Núcleo de Computação Eletrônica and Instituto de Matemática,undefined

[7] Universidade Federal do Rio de Janeiro,undefined

来源：

Order | 1997年 / 14卷

关键词：

algorithms; comparability graphs; sources; sinks;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

We prove that a subset S of vertices of a comparability graph G is a source set if and only if each vertex of S is a source and there is no odd induced path in G between two vertices of S. We also characterize pairs of subsets corresponding to sources and sinks, respectively. Finally, an application to interval graphs is obtained.

引用

页码：75 / 83

页数：8

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