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On Certain Aspects of Topological Indices [PDF]
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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Extremal topological indices of some nanostructures [PDF]
Heliyon, 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
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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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A majorization method for localizing graph topological indices [PDF]
, 2011 This paper presents a unified approach for localizing some relevant graph topological indices via majorization techniques. Through this method, old and new bounds are derived and numerical examples are provided, showing how former results in the ...
Alderson +34 more
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IEEE AccessSelf-similar molecular structures have been recently become popular due to topological indices, which are numerical parameters for network graphs. Topological indices are essential in chemical network analysis to describe the essential connectivity of ...
K. Yogalakshmi, D. Easwaramoorthy
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Sombor topological indices for different nanostructures. [PDF]
Heliyon, 2023 La geometría euclidiana se utiliza para establecer el parámetro del gráfico de Sombor y sus invariantes. Es la suma de todos los vértices adyacentes en la teoría de grafos d? 2+ d? 2 donde d? es el grado del vértice?. La interpretación geométrica se utiliza para describir los nuevos tipos de índices de Sombor.
Imran M +4 more
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On physical analysis of topological indices for iron disulfide network via curve fitting model [PDF]
Scientific ReportsIn 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
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Predicting flavonoid physicochemical properties using topological indices and regression modeling. [PDF]
Sci RepLi H +6 more
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On analysis of topological indices and heat of formation for benzyl sulfamoyl network via curve fitting model [PDF]
Scientific ReportsThe study explores the intricate relationship between topological indices and the heat of formation in the benzyl sulfamoyl network. Topological indices of benzyl sulfamoyl networks are studied and also emphasize their properties statistically.
Hong Yang +5 more
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Machine‐Learning Spectral Indicators of Topology [PDF]
Advanced Materials, 2022 AbstractTopological materials discovery has emerged as an important frontier in condensed matter physics. While theoretical classification frameworks have been used to identify thousands of candidate topological materials, experimental determination of materials’ topology often poses significant technical challenges. X‐ray absorption spectroscopy (XAS)
Nina Andrejevic +9 more
openaire +5 more sources