请输入您要查询的字词:
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
随便看
steel drum
Steele Rudd
steel fastener
steel fiber
steel for heavy rail
steel for prestressed anchorage
steel frame structure system
steel frame structure with refined ductility shear wall system
steel gravity platform
Steel Helmet,League of Front Soldiers
steel ingot teeming
steel ladle leakage
steelmaking
steel-making machinery
steelmaking slag
steel mesh welding machine
steel moment resisting frame
steel penstocks of hydroelectric stations
steel pier for emergency repair of railway
steel pile column digital verticality adjusting of the top-down construction method
steel pipeline-up and weld
steel pipe manufacture
steel plate
steel-plate pile support
steel plate shear wall framed structure
科学参考收录了854744条科技类词条,基本涵盖了常见科技类参考文献及英语词汇的翻译,是科学学习和研究的有利工具。
Copyright © 2000-2023 Sciref.net All Rights Reserved
京ICP备2021023879号
更新时间:2025/7/26 4:54:59