Eccentric connectivity coindex under graph operations

被引:12
作者
Azari, Mahdieh [1 ]
机构
[1] Islamic Azad Univ, Kazerun Branch, Dept Math, POB 73135-168, Kazerun, Iran
关键词
Distance; Eccentricity; Graph operations; MOLECULAR-ORBITALS; INDEX; CENTRALITY; PRODUCT; BOUNDS; SUM;
D O I
10.1007/s12190-019-01271-0
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The eccentric connectivity coindex is defined as the total eccentricity sum of all non-adjacent vertex pairs in a connected graph. In this paper, we present exact expressions or sharp lower bounds for the eccentric connectivity coindex of several graph operations such as sum, disjunction, symmetric difference, lexicographic product, generalized hierarchical product, Cartesian product, rooted product, corona product, and strong product.
引用
收藏
页码:23 / 35
页数:13
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