English

On the stability of the Erd\H{o}s-Ko-Rado theorem

Combinatorics 2016-09-07 v2

Abstract

Delete the edges of a Kneser graph independently of each other with some probability: for what probabilities is the independence number of this random graph equal to the independence number of the Kneser graph itself? We prove a sharp threshold result for this question in certain regimes. Since an independent set in the Kneser graph is the same as a uniform intersecting family, this gives us a random analogue of the Erd\H{o}s-Ko-Rado theorem.

Keywords

Cite

@article{arxiv.1408.1288,
  title  = {On the stability of the Erd\H{o}s-Ko-Rado theorem},
  author = {Béla Bollobás and Bhargav Narayanan and Andrei Raigorodskii},
  journal= {arXiv preprint arXiv:1408.1288},
  year   = {2016}
}

Comments

17 pages, fixed misprints, Journal of Combinatorial Theory, Series A