On the ECI and CEI of (3, 6)-Fullerenes  

作　　者：Tingzeng Wu Huazhong Lü Tingzeng Wu;Huazhong Lü(School of Mathematics and Statistics, Qinghai Nationalities University, Xining, China;School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, China)

机构地区：[1]School of Mathematics and Statistics, Qinghai Nationalities University, Xining, China [2]School of Mathematical Sciences, University of Electronic Science and Technology of China, Chengdu, China

出　　处：《Applied Mathematics》2020年第6期473-479,共7页应用数学（英文）

摘　　要：The eccentricity of a vertex in a graph is the maximum distance from the vertex to any other vertex. Two structure topological indices: eccentric connectivity index and connective eccentricity index involving eccentricity have a wide range of applications in structure-activity relationships and pharmaceutical drug design etc. In this paper, we investigate the eccentric connectivity index and the connective eccentricity index of a (3, 6)-fullerene. We find a relation between the radius and the number of spokes of a (3, 6)-fullerene. Based on the relation, we give the computing formulas of the eccentric connectivity index and the connective eccentricity index of a (3, 6)-fullerene, respectively.The eccentricity of a vertex in a graph is the maximum distance from the vertex to any other vertex. Two structure topological indices: eccentric connectivity index and connective eccentricity index involving eccentricity have a wide range of applications in structure-activity relationships and pharmaceutical drug design etc. In this paper, we investigate the eccentric connectivity index and the connective eccentricity index of a (3, 6)-fullerene. We find a relation between the radius and the number of spokes of a (3, 6)-fullerene. Based on the relation, we give the computing formulas of the eccentric connectivity index and the connective eccentricity index of a (3, 6)-fullerene, respectively.

关 键 词：ECCENTRICITY Eccentric Connectivity Index Connective Eccentricity Index (3 6)-Fullerene 

分 类 号：O15[理学—数学]