摘要
设α(n)是自同构群与n阶循环群C(n)同构的图的最小顶点数,该文构造出群为C(3r)的具有α(3r)个顶点的边数最少的图,并证明了这样的图是唯一的.
Let α(n) be the least number of points for which a graph has its automorphism group isormorphic to C(n),the cyclic group of order n.Let β(3r) represent the least number of lines a graph can have if it has α(n) points and the automorphismgroup isormorphic to C(n).We prove that,as far as C(3r) is concerned,there is only one graph with points and β(3r)(=3r+1+6) lines.
出处
《江西师范大学学报(自然科学版)》
CAS
北大核心
2007年第5期485-487,共3页
Journal of Jiangxi Normal University(Natural Science Edition)
基金
国家自然科学基金资助项目(10661007)
江西省自然科学基金资助项目(511016)
关键词
图
自同构群
循环群
graph
automorphism group
cyclic group