Results 11 to 20 of about 877,520 (249)

Multiplicative topological indices of honeycomb derived networks

open access: yesOpen Physics, 2019
Topological indices are the numerical values associated with chemical structures that correlate physico-chemical properties with structural properties.
Tang Jiang-Hua   +4 more
doaj   +2 more sources

On the topological matrix and topological indices

open access: yesAKCE International Journal of Graphs and Combinatorics, 2020
The topological matrix of a graph are indexed by . If then the of is 1 and the of is 0 for otherwise. In this paper, an upper bound for this topological matrix is found and the weighted topological matrix is defined.
Gülistan Kaya Gök
doaj   +2 more sources

Computation of Topological Indices of Some Special Graphs

open access: yesMathematics, 2018
There are several chemical indices that have been introduced in theoretical chemistry to measure the properties of molecular topology, such as distance-based topological indices, degree-based topological indices and counting-related topological indices ...
Mohammed Salaheldeen Abdelgader   +2 more
doaj   +2 more sources

Downhill Zagreb Topological Indices of Graphs [PDF]

open access: yesInternational Journal of Analysis and Applications, 2021
Topological indices are graph invariants determined by the distance or degree of vertices of the molecular graph. Topological indices have been used effectively in chemical graph theory in explaining the structures and predicting certain physicochemical ...
Bashair Al-Ahmadi   +2 more
doaj   +1 more source

M-Polynomials and Topological Indices of Dominating David Derived Networks

open access: yesOpen Chemistry, 2018
There is a strong relationship between the chemical characteristics of chemical compounds and their molecular structures. Topological indices are numerical values associated with the chemical molecular graphs that help to understand the physical features,
Kang Shin Min   +4 more
doaj   +3 more sources

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

Topological indices of a graph: Lecture Note [PDF]

open access: yes, 2019
In this presentation the topological indices of a graph are presented, namely degree based topological indices, distance based topological indices and eccentricity based topological indices.
Abdussakir, Abdussakir
core   +4 more sources

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

On Computation of Recently Defined Degree-Based Topological Indices of Some Families of Convex Polytopes via M-Polynomial

open access: yesComplexity, 2021
Topological indices are of incredible significance in the field of graph theory. Convex polytopes play a significant role both in various branches of mathematics and also in applied areas, most notably in linear programming.
Deeba Afzal   +3 more
doaj   +1 more source

A paradigmatic approach to the molecular descriptor computation for some antiviral drugs

open access: yesHeliyon, 2023
In theoretical chemistry, topological indices are commonly employed to model the physico-chemical properties of chemical compounds. Mathematicians frequently use Zagreb indices to calculate a chemical compound's strain energy, melting point, boiling ...
Muhammad Usman Ghani   +5 more
doaj   +1 more source

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