摘要
利用图论、数论的相关知识,分析了图中每一点经过t长途径所到达的点的集合,再结合scrambling指数和重下scrambling指数的定义刻画了本原极小强连通有向图的重下scrambling指数的界.
On the basis of graph theory and number theory, we analyse the vertices set of each vertices which can be reached by a walk of length t in digraph. And by using the definitions of the scrambling index and the lower scrambling indices, we investigate the bounds of the lower scrambling indices of the primitive minimally strong digraphs.
出处
《河南师范大学学报(自然科学版)》
CAS
CSCD
北大核心
2012年第6期8-11,共4页
Journal of Henan Normal University(Natural Science Edition)
基金
国家自然科学基金(11071227)
山西省回国留学人员科研资助项目