无三角形平面图的次指数多个3-着色
组合数学
2011-03-31 v2
摘要
Thomassen猜想每个n个顶点的无三角形平面图具有指数多个3-着色,并证明了它至少有2^[n^(1/12)/20000]个不同的3-着色。我们证明它至少有2^sqrt(n/362)个不同的3-着色。
关键词
引用
@article{arxiv.1007.1430,
title = {Sub-exponentially many 3-colorings of triangle-free planar graphs},
author = {Arash Asadi and Zdenek Dvorak and Luke Postle and Robin Thomas},
journal= {arXiv preprint arXiv:1007.1430},
year = {2011}
}
备注
10 pages. Simplified proof. Added a coauthor