摘要
本文证明了子图集族是一个环,它改进了文献[1]中定理1.8的结论.
In this paper, it proved that the family of subgraphs was a ring,it improved the conclusion of theorem 1.8 in the reference [ 1 ].
出处
《青海师专学报》
2005年第6期3-5,共3页
Journal of Qinghai Junior Teachers' College
关键词
子图集族
环
family of subgraphs
ring
