...
首页> 外文期刊>Match >Some extremal unicyclic graphs with respect toHosoya index and Merrifield-Simmons index
【24h】

Some extremal unicyclic graphs with respect toHosoya index and Merrifield-Simmons index

机译:关于Hosoya指数和Merrifield-Simmons指数的一些极端单环图

获取原文
获取原文并翻译 | 示例
           

摘要

The Hosoya index of a graph is defined as the total number of the match-ings, including the empty edge set, of the graph. The Merrifield-Simmons index of agraph is defined as the total number of the independent vertex sets, including the emptyvertex set, of the graph. Let u(n, Δ)be the set of connected unicyclic graphs ordern with maximum degree Δ. We consider the Hosoya indices and the Merrifield-Simmonsindices of graphs from u(n, Δ).In this paper, we characterize the graphs in u(n, Δ) withthe maximal Hosoya index and the minimal Merrifield-Simmons index, respectively, anddetermine the corresponding indices.
机译:图的Hosoya索引定义为图的匹配总数,包括空边缘集。图形的Merrifield-Simmons索引定义为图形的独立顶点集(包括emptyvertex集)的总数。令u(n,Δ)为最大度为Δ的连通单环图阶的集合。我们考虑了u(n,Δ)的图的Hosoya指数和Merrifield-Simmons指数。在本文中,我们分别用最大Hosoya指数和最小Merrifield-Simmons指数表征u(n,Δ)中的图,并确定相应的索引。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号