English

Orientation Ramsey thresholds for cycles and cliques

Combinatorics 2020-12-17 v1

Abstract

If GG is a graph and H\vec H is an oriented graph, we write GHG\to \vec H to say that every orientation of the edges of GG contains H\vec H as a subdigraph. We consider the case in which G=G(n,p)G=G(n,p), the binomial random graph. We determine the threshold pH=pH(n)p_{\vec H}=p_{\vec H}(n) for the property G(n,p)HG(n,p)\to \vec H for the cases in which H\vec H is an acyclic orientation of a complete graph or of a cycle.

Keywords

Cite

@article{arxiv.2012.08632,
  title  = {Orientation Ramsey thresholds for cycles and cliques},
  author = {Gabriel Ferreira Barros and Bruno Pasqualotto Cavalar and Yoshiharu Kohayakawa and Tássio Naia},
  journal= {arXiv preprint arXiv:2012.08632},
  year   = {2020}
}

Comments

13 pages, 2 figures

R2 v1 2026-06-23T21:00:00.914Z