On some graph densities in locally dense graphs
Abstract
The Kohayakawa-Nagle-R\"odl-Schacht conjecture roughly states that every sufficiently large locally -dense graph on vertices must contain at least copies of a fixed graph . Despite its important connections to both quasirandomness and Ramsey theory, there are very few examples known to satisfy the conjecture. We provide various new classes of graphs that satisfy the conjecture. Firstly, we prove that adding an edge to a cycle or a tree produces graphs that satisfy the conjecture. Secondly, we prove that a class of graphs obtained by gluing complete multipartite graphs in a tree-like way satisfies the conjecture. We also prove an analogous result with odd cycles replacing complete multipartite graphs.
Keywords
Cite
@article{arxiv.1707.02916,
title = {On some graph densities in locally dense graphs},
author = {Joonkyung Lee},
journal= {arXiv preprint arXiv:1707.02916},
year = {2019}
}
Comments
21 pages, new results added to the previous version