摘要
Merrifield-Simmons指标和Hosoya指标是化学图论中两个重要的拓扑指标。图的Merrifield-Simmons指标定义为该图中所有独立集数目的和,图的Hosoya指标定义为该图中所有匹配数目的和。研究一类图Gk的Merrifield-Simmons指标和Hosoya指标,根据Cq上两接点u和v之间的距离,给出了该类图Gk关于这两种指标的排序。
Merrifield-Simmons index and Hosoya index are the two valuable topological indices in chemical graph theory. The Merrifield-Simmons index of a graph is defined as the total number of the independ- ent sets of the graph, and the Hosoya index of a graph is defined as the total number of the matches of the graph. The Merrifield-Simmons index and Hosoya index of a class of graphs Ck are investigated. According to the distance between u and v on Cq, their orderings with respect to these two indices are obtained.
出处
《黑龙江大学自然科学学报》
CAS
北大核心
2015年第1期58-62,共5页
Journal of Natural Science of Heilongjiang University
基金
中央高校基本科研业务费专项资金项目(31920140059)
西北民族大学科研创新团队计划资助项目
作者简介
田文文(1987-),男,硕士,主要研究方向:图论与组合优化,E-mail:tianwenwen0202@163.com