完全4-部图的无符号Laplacian整根  

Signless Laplacian integral solution of a complete 4-partite graph

作　　者：卢世芳[1] 

机构地区：[1]青海大学基础部,青海西宁810016

出　　处：《青海大学学报（自然科学版）》2009年第6期46-48,83,共4页Journal of Qinghai University(Natural Science)

摘　　要：文中研究了完全4-部图G=Kn1,n2,n3,n4的特征根,给出了完全4-部图是Q-整图的充分必要条件。The characteristic solution of a complete 4-partite graph G=Kn1,n2,n3,n4 is studied in this paper and the necessary and sufficient condition of a complete 4-partite graph being a Q-integral graph is given out too.

关 键 词：无符号Laplacian谱 Q-整图 完全4-部图 

分 类 号：O157.5[理学—数学]