Results 1 to 10 of about 3,091 (143)

Predicting enthalpy of formation of benzenoid hydrocarbons and ordering molecular trees using general multiplicative Zagreb indices [PDF]

open access: yesHeliyon
Many existing studies show that there exists a strong relationship between structures and characteristics of molecules. Topological indices are often used in modeling the properties of chemical compounds and biological activities in theoretical chemistry.
Sadia Noureen   +4 more
doaj   +2 more sources

About the Zagreb Indices [PDF]

open access: yesKemija u Industriji, 2010
The original Zagreb indices and some of their variants, such as the modified Zagreb indices, variable Zagreb indices, reformulated original Zagreb indices, reformulated modified Zagreb indices, Zagreb indices as complexity indices, general Zagreb indices,
Gutman, I.   +3 more
doaj   +1 more source

Computation of Zagreb Polynomial and Indices for Silicate Network and Silicate Chain Network

open access: yesJournal of Mathematics, 2023
The connection of Zagreb polynomials and Zagreb indices to chemical graph theory is a bifurcation of mathematical chemistry, which has had a crucial influence on the development of chemical sciences.
Muhammad Usman Ghani   +4 more
doaj   +1 more source

On the first and second Zagreb indices of some products of signed graphs

open access: yesAKCE International Journal of Graphs and Combinatorics, 2023
Some of the most comprehensively studied degree-based topological indices are the Zagreb indices. In this article, the pair of Zagreb indices have been determined for five product graphs namely tensor product, Cartesian product, lexicographic product ...
Shivani Rai, Biswajit Deb
doaj   +1 more source

Zagreb indices of some chemical structures using new products of graphs [PDF]

open access: yesJournal of Hyperstructures, 2023
Zagreb indices are one of the most extensively studied degree-based structural descriptors for analyzing various physicochemical properties of chemical compounds.
Liju Alex, Indulal Gopal
doaj   +1 more source

Some topological properties of uniform subdivision of Sierpiński graphs

open access: yesMain Group Metal Chemistry, 2021
Sierpiński graphs are family of fractal nature graphs having applications in mathematics of Tower of Hanoi, topology, computer science, and many more diverse areas of science and technology. This family of graphs can be generated by taking certain number
Liu Jia-Bao   +3 more
doaj   +1 more source

Certain topological indices and polynomials for the semitotal-point graph and line graph of semitotal-point graph for Dutch windmill graph

open access: yesIndonesian Journal of Combinatorics, 2020
Dutch windmill graph [1, 2] and denoted by Dnm. Order and size of Dutch windmill graph are (n−1)m+1 and mn respectively. In this paper, we computed certain topological indices and polynomials i.e.
Salma Kanwal   +4 more
doaj   +1 more source

General multiplicative Zagreb indices of graphs with given clique number [PDF]

open access: yesOpuscula Mathematica, 2019
We obtain lower and upper bounds on general multiplicative Zagreb indices for graphs of given clique number and order. Bounds on the basic multiplicative Zagreb indices and on the multiplicative sum Zagreb index follow from our results. We also determine
Tomáš Vetrík, Selvaraj Balachandran
doaj   +1 more source

The vertex Zagreb indices of some graph operations

open access: yesKarpatsʹkì Matematičnì Publìkacìï, 2016
Recently, Tavakoli et al. introduced a new version of Zagreb indices, named as vertex Zagreb indices. In this paper explicit expressions of different graphs operations of vertex Zagreb indices are presented and also as an application, explicit formulas ...
N. De
doaj   +1 more source

On Multiplicative Topological Invariants of Magnesium Iodide Structure

open access: yesJournal of Mathematics, 2022
In recent times, the applications of graph theory in molecular and chemical structure research have far exceeded human expectations and have grown exponentially.
Zhiqiang Zhang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy