English

On the existence of Hamilton cycles with a periodic pattern in a random digraph

Combinatorics 2020-10-19 v2 Probability

Abstract

We consider Hamilton cycles in the random digraph Dn,mD_{n,m} where the orientation of edges follows a pattern other than the trivial orientation in which the edges are oriented in the same direction as we traverse the cycle. We show that if the orientation forms a periodic pattern, other than the trivial pattern, then approximately half the usual nlognn\log n edges are needed to guarantee the existence of such Hamilton cycles a.a.s.

Keywords

Cite

@article{arxiv.2002.07313,
  title  = {On the existence of Hamilton cycles with a periodic pattern in a random digraph},
  author = {Alan Frieze and Xavier Perez-Gimenez and Pawel Pralat},
  journal= {arXiv preprint arXiv:2002.07313},
  year   = {2020}
}