On the First Three Extremum Values of Variable Sum Exdeg Index of Trees

For a graph G, its variable sum exdeg index is defined as SEIaG=∑xy∈EGadx+ady, where a is a real number other than 1 and dx is the degree of a vertex x. In this paper, we characterize all trees on n vertices with first three maximum and first three minimum values of the SEIa index. Also, we determin...

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Main Authors: Shu-Bo Chen, Syed Sheraz Asghar, Muhammad Ahsan Binyamin, Zahid Iqbal, Tayyeb Mahmood, Adnan Aslam
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Complexity
Online Access:http://dx.doi.org/10.1155/2021/6491886
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author Shu-Bo Chen
Syed Sheraz Asghar
Muhammad Ahsan Binyamin
Zahid Iqbal
Tayyeb Mahmood
Adnan Aslam
author_facet Shu-Bo Chen
Syed Sheraz Asghar
Muhammad Ahsan Binyamin
Zahid Iqbal
Tayyeb Mahmood
Adnan Aslam
author_sort Shu-Bo Chen
collection DOAJ
description For a graph G, its variable sum exdeg index is defined as SEIaG=∑xy∈EGadx+ady, where a is a real number other than 1 and dx is the degree of a vertex x. In this paper, we characterize all trees on n vertices with first three maximum and first three minimum values of the SEIa index. Also, we determine all the trees of order n with given diameter d and having first three largest values of the SEIa index.
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institution Kabale University
issn 1076-2787
1099-0526
language English
publishDate 2021-01-01
publisher Wiley
record_format Article
series Complexity
spelling doaj-art-b560a37c03584d92833042f3931097a02025-02-03T05:52:27ZengWileyComplexity1076-27871099-05262021-01-01202110.1155/2021/64918866491886On the First Three Extremum Values of Variable Sum Exdeg Index of TreesShu-Bo Chen0Syed Sheraz Asghar1Muhammad Ahsan Binyamin2Zahid Iqbal3Tayyeb Mahmood4Adnan Aslam5School of Science, Hunan City University, Yiyang 413000, ChinaDepartment of Mathematics, Govt. College University Faisalabad, Faisalabad, PakistanDepartment of Mathematics, Govt. College University Faisalabad, Faisalabad, PakistanDepartment of Mathematics and Statistics, Institute of Southern Punjab, Multan, PakistanDepartment of Electrical Engineering, University of Engineering and Technology, Lahore (RCET), Lahore, PakistanDepartment of Natural Sciences and Humanities, University of Engineering and Technology, Lahore (RCET), Lahore, PakistanFor a graph G, its variable sum exdeg index is defined as SEIaG=∑xy∈EGadx+ady, where a is a real number other than 1 and dx is the degree of a vertex x. In this paper, we characterize all trees on n vertices with first three maximum and first three minimum values of the SEIa index. Also, we determine all the trees of order n with given diameter d and having first three largest values of the SEIa index.http://dx.doi.org/10.1155/2021/6491886
spellingShingle Shu-Bo Chen
Syed Sheraz Asghar
Muhammad Ahsan Binyamin
Zahid Iqbal
Tayyeb Mahmood
Adnan Aslam
On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
Complexity
title On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
title_full On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
title_fullStr On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
title_full_unstemmed On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
title_short On the First Three Extremum Values of Variable Sum Exdeg Index of Trees
title_sort on the first three extremum values of variable sum exdeg index of trees
url http://dx.doi.org/10.1155/2021/6491886
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