Results 1 to 10 of about 148,749 (259)

Ve-Degree, Ev-Degree, and Degree-Based Topological Indices of Fenofibrate [PDF]

open access: goldJournal of Mathematics, 2022
The molecular topology of a graph is described by topological indices, which are numerical measures. In theoretical chemistry, topological indices are numerical quantities that are used to represent the molecular topology of networks.
Sadik Delen   +6 more
doaj   +2 more sources

On Certain Aspects of Topological Indices [PDF]

open access: goldJournal of Mathematics, 2021
A topological index, also known as connectivity index, is a molecular structure descriptor calculated from a molecular graph of a chemical compound which characterizes its topology.
Tanweer Ul Islam   +4 more
doaj   +2 more sources

Computation of Revan Topological Indices for Phenol-Formaldehyde Resin [PDF]

open access: goldJournal of Mathematics, 2022
Phenol-formaldehyde resin has a wide range of moldings. The phenolic resin retains properties at the freezing point; hence, it is difficult to determine its age.
Muhammad Kamran   +5 more
doaj   +2 more sources

Extremal topological indices of some nanostructures [PDF]

open access: yesHeliyon, 2023
In this work, general formulas of degree-based and neighborhood degree sum-based topological indices for a 2D lattice of H-Naphtalenic nanotubes and pent-heptagonal nanosheets are determined.
Shivani Rai   +3 more
doaj   +2 more sources

On physical analysis of topological indices for iron disulfide network via curve fitting model [PDF]

open access: yesScientific Reports
In this study, we conduct a comprehensive physical analysis of topological indices for the Iron Disulfide (FeS $$_{2}$$ 2 ) network using a curve-fitting model. Iron Disulfide is a cubic compound.
Rongbing Huang   +5 more
doaj   +2 more sources

Novel Degree-Based Topological Descriptors of Fenofibrate Using M-Polynomial

open access: yesJournal of Mathematics, 2023
Chemical graph theory is currently expanding the use of topological indices to numerically encode chemical structure. The prediction of the characteristics provided by the chemical structure of the molecule is a key feature of these topological indices ...
Muhammad Kamran   +6 more
doaj   +1 more source

ISI(G) Topological Index of Sum Graphs For Some Finite Groups

open access: yesAcademic Science Journal, 2023
A topological index can capture much information about a mathematical structure into an actual number. The topological indices have an essential role in theoretical mathematics.
mahera rabee
doaj   +1 more source

Topological Descriptors on Some Families of Graphs

open access: yesJournal of Chemistry, 2021
In view of the successful applications of graph theory, relationships between the biological activity and chemical structure have been developed. One of the popular topics in graph theory is problems relating to topological indices.
Iftikhar Ahmad   +3 more
doaj   +1 more source

On topological descriptors of ceria oxide and their applications

open access: yesMain Group Metal Chemistry, 2021
A topological descriptor is a mathematical illustration of a molecular construction that relates particular physicochemical properties of primary molecular structure as well its mathematical depiction.
Siddiqui Muhammad Kamran   +4 more
doaj   +1 more source

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