摘要
讨论了两种图的色类．第一种图是围长为３的２－连通（ｎ，ｎ＋２）－图；第二种图是０（１，ｂ，ｃ、ｄ）．
Chromatic classes of two families are obtained in this paper. The first farnily of graphs is2-connected(n,n+2)-graphs with girth 3; The second family of graphs is θ(1,b,c,d).
出处
《西北师范大学学报（自然科学版）》
CAS
1994年第1期14-19,共6页
Journal of Northwest Normal University(Natural Science)
关键词
色多项式
色等价
色类
chromatic polynomial,chromatic equivalence , chromatic class
