On the connective eccentricity index of trees and unicyclic graphs with given diameter
On the connective eccentricity index of trees and unicyclic graphs with given diameter
复制标题
DOI：
10.1016/j.jmaa.2014.06.050
复制
发表时间：
2014-12
影响因子：
1.3
通讯作者：
Guihai Yu;Hui Qu;Lang Tang;Lihua Feng
中科院分区：
文献类型：
--
作者：
Guihai Yu;Hui Qu;Lang Tang;Lihua Feng
The connective eccentricity index (CEI) of a graph G is defined as ξ ce (G)=∑ v∈ V (G) d (v) ε (v), where ε (v), d (v) denote the eccentricity and the degree of v, respectively. In this paper we investigate the connective eccentricity index of trees and unicyclic graphs on n vertices with diameter d. We also characterize the extremal graphs.
