摘要
借助于群理论讨论了图的不变量,得到了有向图的正则覆盖及其有向全图的特征多项式的表达式.
The invariants which determine the mula for the characteristic polynomials of an often graphs is discussed according to the theory of group, then the forted regular covering of a finite digraph and the formula for the characteristic polynomials of an oriented total graph of an oriented regular covering is obtained.
出处
《哈尔滨理工大学学报》
CAS
2006年第5期52-54,共3页
Journal of Harbin University of Science and Technology
关键词
特征多项式
正则覆盖
有向全图
characteristic polynomial
regular covering
oriented total graph
