摘要
文章研究了只有两个圈C1,C2的双色有向图,给出了这类双色有向图本原的充分必要条件.
The article,two-colored directed graphs with two cycles C1 and C2 are studied. We show some necessary and sufficient conditions for this class of special two-colored directed graphs to he primitive.
出处
《太原师范学院学报（自然科学版）》
2008年第3期14-16,共3页
Journal of Taiyuan Normal University:Natural Science Edition
基金
山西省自然科学基金资助项目(60773131)
山西省自然科学基金(2008011010)
关键词
有向图
双色图
本原矩阵
directed graphs
two.colored directed graphs
