On the Resistance-Harary Index of Graphs Given Cut Edges

Graphs are often used to describe the structure of compounds and drugs. Each vertex in the graph represents the molecule and each edge represents the bond between the atoms. The resistance distance between any two vertices is equal to the resistance between the two points of an electrical network. T...

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Main Authors: Hongzhuan Wang, Hongbo Hua, Libing Zhang, Shu Wen
Format: Article
Language:English
Published: Wiley 2017-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2017/3531746
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author Hongzhuan Wang
Hongbo Hua
Libing Zhang
Shu Wen
author_facet Hongzhuan Wang
Hongbo Hua
Libing Zhang
Shu Wen
author_sort Hongzhuan Wang
collection DOAJ
description Graphs are often used to describe the structure of compounds and drugs. Each vertex in the graph represents the molecule and each edge represents the bond between the atoms. The resistance distance between any two vertices is equal to the resistance between the two points of an electrical network. The Resistance-Harary index is defined as the sum of reciprocals of resistance distances between all pairs of vertices. In this paper, the extremal graphs with maximum Resistance-Harary index are determined in connected graphs with given vertices and cut edges.
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institution Kabale University
issn 2090-9063
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language English
publishDate 2017-01-01
publisher Wiley
record_format Article
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spelling doaj-art-6d34128959d64db7b1e44b5eec830cf02025-02-03T06:07:16ZengWileyJournal of Chemistry2090-90632090-90712017-01-01201710.1155/2017/35317463531746On the Resistance-Harary Index of Graphs Given Cut EdgesHongzhuan Wang0Hongbo Hua1Libing Zhang2Shu Wen3Huaiyin Institute of Technology, Faculty of Mathematics and Physics, Huai’an, Jiangsu 223003, ChinaHuaiyin Institute of Technology, Faculty of Mathematics and Physics, Huai’an, Jiangsu 223003, ChinaHuaiyin Institute of Technology, Faculty of Mathematics and Physics, Huai’an, Jiangsu 223003, ChinaHuaiyin Institute of Technology, Faculty of Mathematics and Physics, Huai’an, Jiangsu 223003, ChinaGraphs are often used to describe the structure of compounds and drugs. Each vertex in the graph represents the molecule and each edge represents the bond between the atoms. The resistance distance between any two vertices is equal to the resistance between the two points of an electrical network. The Resistance-Harary index is defined as the sum of reciprocals of resistance distances between all pairs of vertices. In this paper, the extremal graphs with maximum Resistance-Harary index are determined in connected graphs with given vertices and cut edges.http://dx.doi.org/10.1155/2017/3531746
spellingShingle Hongzhuan Wang
Hongbo Hua
Libing Zhang
Shu Wen
On the Resistance-Harary Index of Graphs Given Cut Edges
Journal of Chemistry
title On the Resistance-Harary Index of Graphs Given Cut Edges
title_full On the Resistance-Harary Index of Graphs Given Cut Edges
title_fullStr On the Resistance-Harary Index of Graphs Given Cut Edges
title_full_unstemmed On the Resistance-Harary Index of Graphs Given Cut Edges
title_short On the Resistance-Harary Index of Graphs Given Cut Edges
title_sort on the resistance harary index of graphs given cut edges
url http://dx.doi.org/10.1155/2017/3531746
work_keys_str_mv AT hongzhuanwang ontheresistancehararyindexofgraphsgivencutedges
AT hongbohua ontheresistancehararyindexofgraphsgivencutedges
AT libingzhang ontheresistancehararyindexofgraphsgivencutedges
AT shuwen ontheresistancehararyindexofgraphsgivencutedges