English

Finding Hamilton cycles in random graphs with few queries

Combinatorics 2016-08-05 v2 Probability

Abstract

We introduce a new setting of algorithmic problems in random graphs, studying the minimum number of queries one needs to ask about the adjacency between pairs of vertices of G(n,p){\mathcal G}(n,p) in order to typically find a subgraph possessing a given target property. We show that if plnn+lnlnn+ω(1)np\geq \frac{\ln n+\ln\ln n+\omega(1)}{n}, then one can find a Hamilton cycle with high probability after exposing (1+o(1))n(1+o(1))n edges. Our result is tight in both pp and the number of exposed edges.

Keywords

Cite

@article{arxiv.1505.00730,
  title  = {Finding Hamilton cycles in random graphs with few queries},
  author = {Asaf Ferber and Michael Krivelevich and Benny Sudakov and Pedro Vieira},
  journal= {arXiv preprint arXiv:1505.00730},
  year   = {2016}
}

Comments

32 pages

R2 v1 2026-06-22T09:27:48.890Z