Article ID Journal Published Year Pages File Type
4657190 Journal of Combinatorial Theory, Series B 2012 32 Pages PDF
Abstract

We still do not know how to construct the “most general” perfect graph, not even the most general three-colourable perfect graph. But constructing all perfect graphs with no even pairs seems easier, and here we make a start on it; we construct all three-connected three-colourable perfect graphs without even pairs and without clique cutsets. They are all either line graphs of bipartite graphs, or complements of such graphs.

Related Topics
Physical Sciences and Engineering Mathematics Discrete Mathematics and Combinatorics