Results 31 to 40 of about 193,960 (258)
Vertex-Based Topological Indices of Double and Strong Double Graph of Dutch Windmill Graph
Journal of Chemistry, 2021 A measurement of the molecular topology of graphs is known as a topological index, and several physical and chemical properties such as heat formation, boiling point, vaporization, enthalpy, and entropy are used to characterize them.
Muhammad Asad Ali +3 more
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Computing bounds for the general sum-connectivity index of some graph operations [PDF]
Algebra and Discrete Mathematics, 2020 Summary: Let \(G\) be a graph with vertex set \(V(G)\) and edge set \(E(G)\). Denote by \(d_G(u)\) the degree of a vertex \(u\in V(G)\). The general sum-connectivity index of \(G\) is defined as \(\chi_{\alpha}(G)=\sum_{u_1u_2\in E(G)}(d_G(u_1)+d_G(u_2))^{\alpha}\), where \(\alpha\) is a real number. In this paper, we compute the bounds for general sum-
Akhter, S., Farooq, R.
openaire +3 more sources
On Topological Indices for New Classes of Benes Network
Journal of Mathematics, 2021 Topological indices (TIs) transform a molecular graph into a number. The TIs are a vital tool for quantitative structure activity relationship (QSAR) and quantity structure property relationship (QSPR).
Aftab Hussain +5 more
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Topological Descriptors of M-Carbon Mr,s,t
Journal of Chemistry, 2021 We have studied topological indices of the one the hardest crystal structures in a given chemical system, namely, M-carbon. These structures are based and obtained by the famous algorithm USPEX. The computations and applications of topological indices in
Hong Yang, Muhammad Naeem
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Wiener Index and Remoteness in Triangulations and Quadrangulations
, 2021 Let $G$ be a a connected graph. The Wiener index of a connected graph is the sum of the distances between all unordered pairs of vertices. We provide asymptotic formulae for the maximum Wiener index of simple triangulations and quadrangulations with ...
Czabarka, Éva +3 more
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Multiplicative Attributes Derived from Graph Invariants for Saztec4 Diamond
Journal of Mathematics, 2022 This study consists of developing some closed and updated formulas derived from multiplicative graph invariants such as general Randic index GRIRλ0ϰ for λ0=±1,±1/2, ordinary general geometric-arithmetic (OGA), general version of harmonic index (GHI), sum
Muhammad Haroon Aftab +4 more
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Resolving Entanglements in Topological Interference Management with Alternating Connectivity [PDF]
, 2014 The sum-capacity of a three user interference wired network for time-varying channels is considered. Due to the channel variations, it is assumed that the transmitters are only able to track the connectivity between the individual nodes, thus only the ...
Chaaban, Anas +2 more
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A majorization method for localizing graph topological indices
, 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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Topological Study of Zeolite Socony Mobil-5 via Degree-Based Topological Indices
Journal of Chemistry, 2021 Graph theory is a subdivision of discrete mathematics. In graph theory, a graph is made up of vertices connected through edges. Topological indices are numerical parameters or descriptors of graph.
Nouman Saeed +4 more
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New Degree-Based Topological Indices of Toroidal Polyhex Graph by Means of M-Polynomial
Journal of Mathematics, 2022 Graph theory is the principal field of mathematics. In this manuscript, we have discussed the toroidal polyhex graph. Some new indices such as reduced reciprocal randic, arithmetic geometric, SK, SK1, SK2 indices, First Zagrab, the general sum ...
Farkhanda Afzal +5 more
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