English

Cliques, Chromatic Number, and Independent Sets in the Semi-random Process

Combinatorics 2024-05-14 v2 Discrete Mathematics Probability

Abstract

The semi-random graph process is a single player game in which the player is initially presented an empty graph on nn vertices. In each round, a vertex uu is presented to the player independently and uniformly at random. The player then adaptively selects a vertex vv, and adds the edge uvuv to the graph. For a fixed monotone graph property, the objective of the player is to force the graph to satisfy this property with high probability in as few rounds as possible. In this paper, we investigate the following three properties: containing a complete graph of order kk, having the chromatic number at least kk, and not having an independent set of size at least kk.

Keywords

Cite

@article{arxiv.2303.13443,
  title  = {Cliques, Chromatic Number, and Independent Sets in the Semi-random Process},
  author = {David Gamarnik and Mihyun Kang and Pawel Pralat},
  journal= {arXiv preprint arXiv:2303.13443},
  year   = {2024}
}