“完美图定理”的概念、定义、翻译、参考文献-科学参考

单词	完美图定理
释义	完美图定理 Encyclopedia 理学次模函数释 perfect graph theorem完美图定理如果一个图的每个导出子图的色数与这个导出子图的团数相等，那么这个图被称为完美图。人们熟知的很多图类都是完美图，如空图、二部图、二部图的线图、区间图、弦图、阀图以及它们的补图等。简单图的补图是指和具有相同顶点集的简单图，两个顶点在中相邻当且仅当它们在中不相邻。完美图定理又称弱完美图定理（weak perfect graph theorem）。 Mathematics ＞组合数学、组合设计与图论＞图论＞释义 perfect graph theorem完美图定理
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