A short proof that $\chi$ can be bounded $\epsilon$ away from $\Delta+1$ towards $\omega$
Discrete Mathematics
2012-11-08 v1 Combinatorics
Abstract
In 1998 the second author proved that there is an such that every graph satisfies . The first author recently proved that any graph satisfying contains a stable set intersecting every maximum clique. In this note we exploit the latter result to give a much shorter, simpler proof of the former. We include, as a certificate of simplicity, an appendix that proves all intermediate results with the exception of Hall's Theorem, Brooks' Theorem, the Lov\'asz Local Lemma, and Talagrand's Inequality.
Keywords
Cite
@article{arxiv.1211.1410,
title = {A short proof that $\chi$ can be bounded $\epsilon$ away from $\Delta+1$ towards $\omega$},
author = {Andrew D. King and Bruce A. Reed},
journal= {arXiv preprint arXiv:1211.1410},
year = {2012}
}
Comments
10 pages. arXiv admin note: text overlap with arXiv:0911.1741