English

Cliques with many colors in triple systems

Combinatorics 2020-05-08 v1

Abstract

Erd\H{o}s and Hajnal constructed a 4-coloring of the triples of an NN-element set such that every nn-element subset contains 2 triples with distinct colors, and NN is double exponential in nn. Conlon, Fox and R\"odl asked whether there is some integer q3q\ge 3 and a qq-coloring of the triples of an NN-element set such that every nn-element subset has 3 triples with distinct colors, and NN is double exponential in nn. We make the first nontrivial progress on this problem by providing a qq-coloring with this property for all q9q\geq 9, where NN is exponential in n2+cqn^{2+cq} and c>0c>0 is an absolute constant.

Keywords

Cite

@article{arxiv.2005.03078,
  title  = {Cliques with many colors in triple systems},
  author = {Dhruv Mubayi and Andrew Suk},
  journal= {arXiv preprint arXiv:2005.03078},
  year   = {2020}
}
R2 v1 2026-06-23T15:21:55.706Z