摘要
本文研究了在l、m固定的情况下,删除完全一致混合超图κ(n,l,m)的若干C-超边和D-超边后其上、下色数的变化.
In the thesis,we study the chargement of the upper and lower chromatic number of the complet (l,m) -uniform mixed hypergraphs deleted some C - hyperedges or some D - hyperedges where l and m are fixed.
出处
《青海师专学报》
2007年第5期18-22,共5页
Journal of Qinghai Junior Teachers' College
关键词
完全一致混合超图
C-超边
D-超边
下色数
上色数
perfect uniform mixed hypergraphs
C - hyperedges
D - hyperedges
upper chromatic number
lower chromatic number