English

The Game of Cops and Robber on (Claw, Even-hole)-free Graphs

Combinatorics 2022-01-12 v2 Discrete Mathematics

Abstract

In this paper, we study the game of cops and robber on the class of graphs with no even hole (induced cycle of even length) and claw (a star with three leaves). The cop number of a graph GG is defined as the minimum number of cops needed to capture the robber. Here, we prove that the cop number of all claw-free even-hole-free graphs is at most two and, in addition, the capture time is at most 2n2n rounds, where nn is the number of vertices of the graph. Moreover, our results can be viewed as a first step towards studying the structure of claw-free even-hole-free graphs.

Keywords

Cite

@article{arxiv.2112.07503,
  title  = {The Game of Cops and Robber on (Claw, Even-hole)-free Graphs},
  author = {Ramin Javadi and Ali Momeni},
  journal= {arXiv preprint arXiv:2112.07503},
  year   = {2022}
}