The Hadwiger number, chordal graphs and -perfection
A graph is chordal if every induced cycle has three vertices. The Hadwiger number is the order of the largest complete minor of a graph. We characterize the chordal graphs in terms of the Hadwiger number and we also characterize the families of graphs such that for each induced subgraph , (1) the Ha...
Main Author: | |
---|---|
Format: | Article |
Language: | English |
Published: |
Taylor & Francis Group
2017-08-01
|
Series: | AKCE International Journal of Graphs and Combinatorics |
Subjects: | |
Online Access: | http://dx.doi.org/10.1016/j.akcej.2017.02.004 |