Results 11 to 20 of about 3,892,377 (304)

GTI-space : the space of generalized topological indices [PDF]

open access: yes, 2008
A new extension of the generalized topological indices (GTI) approach is carried out torepresent 'simple' and 'composite' topological indices (TIs) in an unified way.
Matamala, A.R.   +5 more
core   +4 more sources

Ve-Degree, Ev-Degree, and Degree-Based Topological Indices of Fenofibrate

open access: yesJournal 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   +1 more source

Eccentricity-Based Topological Invariants of Dominating David-Derived Networks

open access: yesJournal of Chemistry, 2021
A topological index is a numerical descriptor of the molecular structure based on certain topological features of the corresponding molecular graph. Topological indices are scientific contemplations of a graph that outline its subatomic topology and are ...
Muhammad Imran   +2 more
doaj   +1 more source

Computing Some Degree-Based Topological Indices of Honeycomb Networks

open access: yesComplexity, 2022
A topological index is a numeric quantity related with the chemical composition claiming to correlate the chemical structure with different chemical properties. Topological indices serve to predict physicochemical properties of chemical substance.
Lili Gu   +4 more
doaj   +1 more source

Structural Analysis and Topological Characterization of Sudoku Nanosheet

open access: yesJournal of Mathematics, 2022
The physical and biological properties of chemical compounds are modelled using chemical graph theory. The geometric structure of chemical compounds can be modelled using a variety of topological indices derived from graph theory. The chemical structures,
Shahid Zaman   +3 more
doaj   +1 more source

The Calculations of Topological Indices on Certain Networks

open access: yesJournal of Mathematics, 2021
It is one of the core problems in the study of chemical graph theory to study the topological index of molecular graph and the internal relationship between its structural properties and some invariants.
Jia-Bao Liu, Ting Zhang, Sakander Hayat
doaj   +1 more source

On Distance-Based Topological Descriptors of Chemical Interconnection Networks

open access: yesJournal of Mathematics, 2021
Structure-based topological descriptors of chemical networks enable us the prediction of physico-chemical properties and the bioactivities of compounds through QSAR/QSPR methods.
Min Hu   +5 more
doaj   +1 more source

M-Polynomials and Topological Indices for Line Graphs of Chain Silicate Network and H-Naphtalenic Nanotubes

open access: yesJournal of Mathematics, 2021
Graph theory has provided a very useful tool, called topological index, which is a number from the graph M with the property that every graph N isomorphic to M value of a topological index must be same for both M and N.
Muhammad Irfan   +4 more
doaj   +1 more source

Topological properties of Graphene using some novel neighborhood degree-based topological indices

open access: yesInternational Journal of Mathematics for Industry, 2019
Topological indices are numeric quantities that transform chemical structure to real number. Topological indices are used in QSAR/QSPR studies to correlate the bioactivity and physiochemical properties of molecule.
Sourav Mondal, Nilanjan De, Anita Pal
doaj   +1 more source

A Comparison of the Schultz Molecular Topological Index with the Wiener Index [PDF]

open access: yesJournal of Chemical Information and Computer Sciences, 1996
The Schultz molecular topological index (MTI) is compared with the Wiener index (W) of a molecular graph.
Sandi Klavzar, Ivan Gutman
openaire   +2 more sources

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