How false is Kempe’s proof of the Four Color Theorem? Part II
How false is Kempe’s proof of the Four Color Theorem? Part II
复制标题
肯普对四色定理第二部分的证明有多错误?
DOI:
--
复制
发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Nao Takano
中科院分区:
文献类型:
--
作者:
G. Ellen;Bopanna Kallichanda;Alexander S. Mentis;Sarah Braudrick;S. Chawla;Andrew Clune;Rachel Drummond;Panagiota Evans;William Roche;Nao Takano
We continue the investigation of A. B. Kempe’s flawed proof of the Four Color Theorem from a computational and historical point of view. Kempe’s “proof” gives rise to an algorithmic method of coloring plane graphs that sometimes yields a proper vertex coloring requiring four or fewer colors. We investigate a recursive version of Kempe’s method and a modified version based on the work of I. Kittell. Then we empirically analyze the performance of the implementations on a variety of historically motivated benchmark graphs and explore the usefulness of simple randomization in four-coloring small plane graphs. We end with a list of open questions and future work.