The Third Leap Zagreb Index for Trees

The third leap Zagreb index is the sum of the products of vertex degrees and second degrees. In this paper, a lower bound on the third leap Zagreb index is established, and the extremal trees achieving this bound are characterized.

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Main Authors: Jia-Ming Zhu, Nasrin Dehgardi, Xiaoxin Li
Format: Article
Language:English
Published: Wiley 2019-01-01
Series:Journal of Chemistry
Online Access:http://dx.doi.org/10.1155/2019/9296401
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author Jia-Ming Zhu
Nasrin Dehgardi
Xiaoxin Li
author_facet Jia-Ming Zhu
Nasrin Dehgardi
Xiaoxin Li
author_sort Jia-Ming Zhu
collection DOAJ
description The third leap Zagreb index is the sum of the products of vertex degrees and second degrees. In this paper, a lower bound on the third leap Zagreb index is established, and the extremal trees achieving this bound are characterized.
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institution Kabale University
issn 2090-9063
2090-9071
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publishDate 2019-01-01
publisher Wiley
record_format Article
series Journal of Chemistry
spelling doaj-art-379414543c8b475a9e7a3f9d0ec461d72025-02-03T01:11:53ZengWileyJournal of Chemistry2090-90632090-90712019-01-01201910.1155/2019/92964019296401The Third Leap Zagreb Index for TreesJia-Ming Zhu0Nasrin Dehgardi1Xiaoxin Li2School of Statistics and Applied Mathematics, Anhui University of Finance and Economics, Bengbu 233030, ChinaDepartment of Mathematics and Computer Science, Sirjan University of Technology, Sirjan, IranSchool of Big Data and Artificial Intelligence, Chizhou University, Chizhou 247000, ChinaThe third leap Zagreb index is the sum of the products of vertex degrees and second degrees. In this paper, a lower bound on the third leap Zagreb index is established, and the extremal trees achieving this bound are characterized.http://dx.doi.org/10.1155/2019/9296401
spellingShingle Jia-Ming Zhu
Nasrin Dehgardi
Xiaoxin Li
The Third Leap Zagreb Index for Trees
Journal of Chemistry
title The Third Leap Zagreb Index for Trees
title_full The Third Leap Zagreb Index for Trees
title_fullStr The Third Leap Zagreb Index for Trees
title_full_unstemmed The Third Leap Zagreb Index for Trees
title_short The Third Leap Zagreb Index for Trees
title_sort third leap zagreb index for trees
url http://dx.doi.org/10.1155/2019/9296401
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