English

A phase transition in Erd\H{o}s-Barak random graphs

Probability 2026-01-19 v2 Combinatorics Statistics Theory Statistics Theory

Abstract

We study monotone paths in Erd\H{o}s-R\'enyi random graphs on numbered vertices. Benjamini & Tzalik established a phase transition at p=lognnp = \frac{\log n}{n} for this model. We refine the critical value to p=lognloglognnp = \frac{\log n - \log \log n }{n} and identify the critical window of order Θ(1/n)\Theta(1/n).

Keywords

Cite

@article{arxiv.2512.05756,
  title  = {A phase transition in Erd\H{o}s-Barak random graphs},
  author = {Gilles Blanchard and Nicolas Curien and Klara Krause and Alexander Reisach},
  journal= {arXiv preprint arXiv:2512.05756},
  year   = {2026}
}

Comments

6 pages. We have added the acknowledgments (which may be worth reading for our French collegues)

R2 v1 2026-07-01T08:11:36.379Z