Results 21 to 30 of about 5,307,048 (221)
Bounds for the atom-bond sum-connectivity index of graphs
, 2023 Abstract The atom-bond sum-connectivity (ABSC) index of a graph G is defined as ABSC(G) = uv∈E(G) du+dv−2 du+dv , where d u and d v represent the degrees of u and v in G, respectively. In this paper, we give some sharp bounds for the ABSC index in term of the first Zagreb index, the harmonic index, the sum-connectivity index, the minimum and ...
Zaryab Hussain +3 more
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Journal of Chemistry, 2021 In this research paper, we will compute the topological indices (degree based) such as the ordinary generalized geometric-arithmetic (OGA) index, first and second Gourava indices, first and second hyper-Gourava indices, general Randic´ index RγG,for γ=±1,
Muhammad Haroon Aftab +3 more
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On Multiplicative Topological Invariants of Magnesium Iodide Structure
Journal of Mathematics, 2022 In recent times, the applications of graph theory in molecular and chemical structure research have far exceeded human expectations and have grown exponentially.
Zhiqiang Zhang +5 more
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Topological Indices of Families of Bistar and Corona Product of Graphs
Journal of Mathematics, 2022 Topological indices are graph invariants that are used to correlate the physicochemical properties of a chemical compound with its (molecular) graph. In this study, we study certain degree-based topological indices such as Randić index, Zagreb indices ...
A. Khalid +5 more
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Topological Indices of Certain Transformed Chemical Structures
Journal of Chemistry, 2020 Topological indices like generalized Randić index, augmented Zagreb index, geometric arithmetic index, harmonic index, product connectivity index, general sum-connectivity index, and atom-bond connectivity index are employed to calculate the bioactivity ...
Xuewu Zuo +4 more
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Topological Indices of the Pent-Heptagonal Nanosheets VC5C7 and HC5C7
Advances in Materials Science and Engineering, 2019 In this paper, we computed the topological indices of pent-heptagonal nanosheet. Formulas for atom-bond connectivity index, fourth atom-bond connectivity index, Randić connectivity index, sum-connectivity index, first Zagreb index, second Zagreb index ...
Fei Deng +4 more
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Some degree-based topological indices of caboxy-terminated dendritic macromolecule
Main Group Metal Chemistry, 2021 In the modern era of the chemical science, the chemical graph theory has contributed significantly to exploring the properties of the chemical compounds.
Rao Yongsheng +5 more
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Topological Attributes of Silicon Carbide SiC4-IIi,j Based on Ve-Degree and Ev-Degree
Journal of Chemistry, 2022 The study of graphs containing edges and nodes is of great importance in science and in real life. Topological indices TIs are numerical parameters linked to chemical graphs used to estimate the biological, toxicological, and physical properties of ...
Abid Mahboob +5 more
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Degree-Based Topological Indices of Boron B12
Journal of Chemistry, 2021 Topological index sometimes called molecular descriptor is a numerical value which associates a chemical composition for correlating chemical structure with numerous physical properties, chemical reactivity, or biological activity.
Nouman Saeed +4 more
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Computation of M-Polynomial and Topological Indices of Phenol Formaldehyde
Journal of Chemistry, 2022 Phenol formaldehyde (phenolic resin) has a wide range of moldings. However, it has immense consumption in manufacturing electrical equipment due to its insulating property.
Muhammad Kamran +5 more
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