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On the topological matrix and topological indices [PDF]
AKCE 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
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On Certain Aspects of Topological Indices
Journal 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
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Topological Indices of Proteins [PDF]
Scientific Reports, 2019 AbstractProtein molecules can be approximated by discrete polygonal chains of amino acids. Standard topological tools can be applied to the smoothening of the polygons to introduce a topological classification of folded states of proteins, for example, using the self-linking number of the corresponding framed curves.
Melnikov, Dmitry +2 more
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Eccentricity-based topological indices of QSPR modelling using anti-cancer drugs [PDF]
Frontiers in ChemistryIn chemical graph theory, topological indices are essential for relating physicochemical properties and molecule structures. This study predicts the properties of 23 anti-cancer drugs by combining 13 eccentricity-based topological indices obtained from ...
R. Vimala, J. Ravi Sankar
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The usefulness of topological indices
Information Sciences, 2022 Peer ...
Yuede Ma +6 more
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On Topological Indices and Their Reciprocals
Match Communications in Mathematical and in Computer Chemistry, 2023 Summary: If \(TI(G)=\sum\limits_\gamma F(\gamma)\) is a topological index of the graph \(G \), then \(RTI(G)=\sum\limits_\gamma \frac{1}{F(\gamma)}\) is the respective reciprocal index. In contemporary mathematical chemistry, a large number of pairs \((TI,RTI)\) have been separately introduced and studied, but their mutual relations eluded attention ...
Ivan Gutman +2 more
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Novel Degree-Based Topological Descriptors of Fenofibrate Using M-Polynomial
Journal 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
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On topological descriptors of ceria oxide and their applications
Main 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
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ISI(G) Topological Index of Sum Graphs For Some Finite Groups
Academic 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
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Ve-Degree, Ev-Degree, and Degree-Based Topological Indices of Fenofibrate
Journal 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
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