English

Gallai-Ramsey Multiplicity

Combinatorics 2023-02-22 v1

Abstract

Given two graphs GG and HH, the \emph{general kk-colored Gallai-Ramsey number} grk(G:H)\operatorname{gr}_k(G:H) is defined to be the minimum integer mm such that every kk-coloring of the complete graph on mm vertices contains either a rainbow copy of GG or a monochromatic copy of HH. Interesting problems arise when one asks how many such rainbow copy of GG and monochromatic copy of HH must occur. The \emph{Gallai-Ramsey multiplicity} GMk(G,H)\operatorname{GM}_{k}(G,H) is defined as the minimum total number of rainbow copy of GG and monochromatic copy of HH in any exact kk-coloring of Kgrk(G,H)K_{\operatorname{gr}_{k}(G,H)}. In this paper, we give upper and lower bounds for Gallai-Ramsey multiplicity involving some small rainbow subgraphs.

Keywords

Cite

@article{arxiv.2302.10770,
  title  = {Gallai-Ramsey Multiplicity},
  author = {Yaping Mao},
  journal= {arXiv preprint arXiv:2302.10770},
  year   = {2023}
}

Comments

17 pages

R2 v1 2026-06-28T08:45:43.783Z