Ramsey and Gallai-Ramsey numbers for two classes of unicyclic graphs
Combinatorics
2018-09-28 v1
Abstract
Given a graph and a positive integer , define the \emph{Gallai-Ramsey number} to be the minimum number of vertices such that any -edge coloring of contains either a rainbow (all different colored) triangle or a monochromatic copy of . In this paper, we consider two classes of unicyclic graphs, the star with an extra edge and the path with a triangle at one end. We provide the -color Ramsey numbers for these two classes of graphs and use these to obtain general upper and lower bounds on the Gallai-Ramsey numbers.
Cite
@article{arxiv.1809.10298,
title = {Ramsey and Gallai-Ramsey numbers for two classes of unicyclic graphs},
author = {Zhao Wang and Yaping Mao and Colton Magnant and Jinyu Zou},
journal= {arXiv preprint arXiv:1809.10298},
year = {2018}
}
Comments
17 pages. arXiv admin note: text overlap with arXiv:1802.04930