Results 61 to 70 of about 4,554,566 (196)
The Third Leap Zagreb Index for Trees
, 2019 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 ...
Nasrin Dehgardi +2 more
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Bibliometrijska analiza članaka Stomatološkog fakulteta Sveučilišta u Zagrebu indeksiranih u Web of Science (1976.- 2005.) = Bibliometric Analysis of Articles from the School of Dental Medicine, University of Zagreb, Indexed in Web of Science Database (1976-2005) [PDF]
, 2006 This article represents bibliometric analysis of published articles with the address of the School of Dental Medicine, University of Zagreb, indexed in Web of Science database in the period 1976-2005.
Borić, Vesna
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The Hyper-Zagreb Index of Trees and Unicyclic Graphs
Iranian Journal of Mathematical Sciences and Informatics, 2023 Applications in chemistry motivated mathematicians to define different topological indices for different types of graphs. The Hyper-Zagreb index (HM) is an important tool as it integrates the first and the second Zagreb indices. In this paper, we characterize the trees and unicyclic graphs with the first four and first eight greatest HM-value ...
Rezapour, Hassan +2 more
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Cactus Graphs with Maximal Multiplicative Sum Zagreb Index
, 2021 A connected graph G is said to be a cactus if any two cycles have at most one vertex in common. The multiplicative sum Zagreb index of a graph G is the product of the sum of the degrees of adjacent vertices in G. In this paper, we introduce several graph
Lkhagva Buyantogtokh +2 more
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REDUCED SECOND ZAGREB INDEX OF UNICYCLIC GRAPHS
, 2018 Recently a novel degree based topological index, reduced second Zagreb index, defined for any connected graph as ...
Aldemir, Mehmet Şerif +1 more
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A Novel/Old Modification of the First Zagreb Index [PDF]
Molecular Informatics, 2018 AbstractIn the seminal paper [I. Gutman, N. Trinajstić, Chem. Phys. Lett. 1972, 17, 535–538], it was shown that total electron energy ( ) of any alternant hydrocarbon depends on the sum of the squares of the degrees of the corresponding molecular graph. Nowadays, this sum is known as the first Zagreb index.
Akbar Ali, Nenad Trinajstić
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On second Zagreb index and coindex of some derived graphs [PDF]
, 2015 The second Zagreb index is defined as the sum of the products of the degrees of adjacent vertices. In this note, we examine the second Zagreb indices of some derived graphs and find expressions for these in terms of vertex ...
Bommanahal Basavanagoud +2 more
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Journal of Inequalities and Applications, 2017 Topological indices are the mathematical tools that correlate the chemical structure with various physical properties, chemical reactivity or biological activity numerically.
Muhammad Imran +3 more
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On Zagreb coindices and Mostar index of $$TiO_2$$ nanotubes
Scientific Reports, 2023 Abstract Topological indices are valuable tools in predicting properties of chemical compounds. This study focuses on degree-based topological indices, which have shown strong correlations with various physico-chemical properties such as boiling points and strain energy.
Imran, Muhammad +4 more
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Entropy measures of dendrimers using degree based indices
South African Journal of Chemical EngineeringTopological indices play a crucial role as molecular descriptors in QSAR/QSPR research. Graph entropy measurements are of great importance in various fields like chemistry, discrete mathematics, and biology.
Ali Ovais +4 more
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