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A Map Coloring Method
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作者 Shijun Han 《Journal of Applied Mathematics and Physics》 2023年第4期1200-1208,共9页
Different vertices are colored in a plan. Adjacent vertices are colored dif-ferently from nonadjacent vertices, which are colored the same color. One color is used for a single point, two colors are used for points wi... Different vertices are colored in a plan. Adjacent vertices are colored dif-ferently from nonadjacent vertices, which are colored the same color. One color is used for a single point, two colors are used for points without a loop, and a maximum of four colors are used for points with a loop. A maximum of four colors are used to color all points. . 展开更多
关键词 MAP four colors four colors Conjecture Graph Theory
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