A Class of Perfect Graphs Containing P6.pdf.pdf' (2.08 MB)
A Class of Perfect Graphs Containing P6
journal contributionposted on 2000-01-01, 00:00 authored by Gerard CornuejolsGerard Cornuejols, Xinming Liu
Let P6 denote the induced path on six nodes. We prove that if a perfect graph G contains P6 as an induced subgraph but not two families introduced by Conforti and Cornuéjols then G is bipartite or disconnected, or Ḡ has a star cutset.