摘要
设2Cn(n≥，n∈N)表示两个不相交的有向回路Cn组成的图，本文证明2Cn是优美有向图。
Let 2C n(n≥3) be a digraph Composed of two disjoin directed circuits C n.In this paper,It is proved that 2C n is graceful digraph.
作者
丁孝全
DING Xiao quan (Department of Mathematica and Computer,Heze Teachers' College,Heze 274015,China)
出处
《赣南师范学院学报》
2000年第2期12-14,共3页
Journal of Gannan Teachers' College(Social Science(2))
