Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6424122 | European Journal of Combinatorics | 2015 | 11 Pages |
Abstract
A wheel is a graph formed by a chordless cycle C and a vertex u not in C that has at least three neighbors in C. We prove that every 3-connected planar graph that does not contain a wheel as an induced subgraph is either a line graph or has a clique cutset. We prove that every planar graph that does not contain a wheel as an induced subgraph is 3-colorable.
Related Topics
Physical Sciences and Engineering
Mathematics
Discrete Mathematics and Combinatorics
Authors
Pierre Aboulker, Maria Chudnovsky, Paul Seymour, Nicolas Trotignon,