Forbidden Subgraphs for Chorded Pancyclicity

Abstract

We call a graph $G$ pancyclic if it contains at least one cycle of every possible length $m$, for $3\le m\le |V(G)|$. In this paper, we define a new property called chorded pancyclicity. We explore forbidden subgraphs in claw-free graphs sufficient to imply that the graph contains at least one chorded cycle of every possible length $4,5,\dots ,|V(G)|$. In particular, certain paths and triangles with pendant paths are forbidden.

14 pages, 14 figures