foundout a critical corresponding relationship between a δwheelof any maximal simple plane graph of n vertices(nMSPG)and its corresponding δcycleof a corresponding n-1MSPGof the nMSPG, and relied on theinductive way, while with the help of KempeChain (KC), this article gives a brand-newlogical proof for the famous and morethan 100 years old fourcolor conjecture (4CC).
Content
Author and article information
Journal
Title:
ScienceOpen Preprints
Publisher:
ScienceOpen
Publication date
(Electronic preprint):
24
February
2021
Affiliations
[1
] department of basic courses, Sichuan College of Traditional Chinese Medicine, Mianyang
city, 621000, Sichuan province, China.
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History
Date
received
: 24
February
2021
Data availability: All data generated or analysed during this study are included in this published article (and its supplementary information files).