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22 April 2022 Standardized formulation and proof of four-colour problem
Xiaobo Cai
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Proceedings Volume 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021); 121633O (2022) https://doi.org/10.1117/12.2627639
Event: International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 2021, Nanjing, China
Abstract
The four-colour problem came from the practice of drawing maps. It was called the four-color conjecture before it is proved. This paper, attempts to simplify this problem to some extent and gives a simplified proof. Finally, the expected results are obtained. In the process, two theorems which can be used to simplify vertex colouring problems are also obtained.
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Xiaobo Cai "Standardized formulation and proof of four-colour problem", Proc. SPIE 12163, International Conference on Statistics, Applied Mathematics, and Computing Science (CSAMCS 2021), 121633O (22 April 2022); https://doi.org/10.1117/12.2627639
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KEYWORDS
Algorithms
Basic research
Computer science
Mathematics
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