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一类(n, n+1)-图关于Merrifield-Simmons指标和Hosoya指标的排序
发表时间:2014-01-15 浏览量:1928 下载量:508
全部作者: | 田文文,田双亮,王文婷 |
作者单位: | 西北民族大学数学与计算机科学学院;兰州交通大学数理学院 |
摘 要: | Merrifield-Simmons指标和Hosoya指标是化学图论研究中最为重要和流行的2个拓扑指标。图的Merrifield-Simmons指标定义为图中所有独立集的数目;图的Hosoya指标定义为图中所有匹配数目。主要研究了一类(n, n+1)-图Bk的Merrifield-Simmons指标和Hosoya指标,根据Cn上两接点u和v之间的距离,给出了该类图关于这2种指标的排序。 |
关 键 词: | 图论;(n, n+1)-图;Merrifield-Simmons指标;Hosoya指标;排序 |
Title: | Orderings of a class of (n, n+1)-graphs with respect to Merrifield-Simmons indices and Hosoya indices |
Author: | TIAN Wenwen, TIAN Shuangliang, WANG Wenting |
Organization: | School of Mathematics and Computer Science, Northwest University for Nationalities; School of Mathematics and Physics, Lanzhou Jiaotong University |
Abstract: | 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 independent sets of the graph and the Hosoya index of a graph is defined as the total number of the matchings of the graph. In this paper, the Merrifield-Simmons index and Hosoya index of the class of (n, n+1)-graphs Bk are investigated. According to the distance between u and v on Cn, their orderings with respect to these two indices are provided. |
Key words: | graph theory; (n, n+1)-graph; Merrifield-Simmons index; Hosoya index; ordering |
发表期数: | 2014年1月第1期 |
引用格式: | 田文文,田双亮,王文婷. 一类(n, n+1)-图关于Merrifield-Simmons指标和Hosoya指标的排序[J]. 中国科技论文在线精品论文,2014,7(1):28-32. |

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