论文部分内容阅读
世界近代三大数学难题之一四色猜想的提出来自英国。1852年,毕业于伦敦大学的弗南西斯·格思里来到一家科研单位搞地图着色工作时,发现了一种有趣的现象:“看来,每幅地图都可以用四种颜色着色,使得有共同边界的国家着上不同的颜色。”这个结论能不能从数学上加以严格证明呢?他
One of the three major mathematical problems in the modern world is the proposal of four colors from the United Kingdom. In 1852, when Ferniss Guthrie, a graduate of the University of London, came to a scientific research unit for map coloring, he found an interesting phenomenon: “It seems that each map can be colored with four colors, making Countries with common borders come in different colors.” Can this conclusion be mathematically rigorously proved?