Results 11 to 20 of about 109,183 (305)

A QSPR analysis and curvilinear regression models for various degree-based topological indices: Quinolone antibiotics. [PDF]

open access: yesHeliyon
Topological indices play an essential role in defining a chemical compound numerically and are widely used in QSPR/QSAR analysis. Using this analysis, physicochemical properties of the compounds and the topological indices are studied.
Kirana B, Shanmukha MC, Usha A.
europepmc   +2 more sources

On vertex and edge degree-based topological indices

open access: yesVojnotehnički Glasnik, 2023
Introduction/purpose: The entire topological indices (T Ient) are a class of graph invariants depending on the degrees of vertices and edges. Some general properties of these invariants are established.
Ivan Gutman
doaj   +2 more sources

On statistical evaluation of reverse degree based topological indices for iron telluride networks. [PDF]

open access: yesSci Rep
In the context of graph theory and chemical graph theory, this research conducts a detailed mathematical investigation of reverse topological indices as they relate to iron telluride networks, clarifying their complex interactions.
Youssef MZ   +5 more
europepmc   +2 more sources

Calculating the Degree-based Topological Indices of Dendrimers [PDF]

open access: yesOpen Chemistry, 2018
Topological indices capture the symmetry of molecular structures and provide a mathematical language to predict properties such as boiling points, viscosity, the radius of gyrations etc. [1].
Kang Shin Min   +4 more
doaj   +2 more sources

Computation of New Degree-Based Topological Indices of Graphene

open access: yesJournal of Mathematics, 2016
Graphene is one of the most promising nanomaterials because of its unique combination of superb properties, which opens a way for its exploitation in a wide spectrum of applications ranging from electronics to optics, sensors, and biodevices. Inspired by
V. S. Shigehalli, Rachanna Kanabur
doaj   +2 more sources

Geometric perspective to Degree–Based topological indices of supramolecular chain

open access: yesResults in Engineering, 2022
Sombor index and their types are introduced pertaining to Euclidean geometry. In graph-theoretical terminology, it is the sum of all pairs of adjacent vertices di2+dj2 given di is the degree of ith vertex.
Muhammad Imran   +4 more
doaj   +3 more sources

Topological properties of Graphene using some novel neighborhood degree-based topological indices

open access: yesInternational Journal of Mathematics for Industry, 2019
Topological indices are numeric quantities that transform chemical structure to real number. Topological indices are used in QSAR/QSPR studies to correlate the bioactivity and physiochemical properties of molecule.
Sourav Mondal, Nilanjan De, Anita Pal
doaj   +3 more sources

Entropy comparison of benzothiadiazole-based covalent-organic frameworks [PDF]

open access: yesFrontiers in Chemistry
Covalent Organic Frameworks (COFs) are popular photocatalysts that utilize solar energy to generate hydrogen peroxide and evolve hydrogen because of their intrinsic porosity, robust framework, and excellent structural regularity.
Soniya Kurian   +3 more
doaj   +2 more sources

Wiener and Additive Degree-Based Topological Indices of Linear Functional Graphs Over Finite-Dimensional Vector Spaces

open access: yesJournal of Applied Mathematics
This article explores numerous significant additive topological indices based on degrees for linear functional graphs over finite-dimensional vector spaces.
Vinnarasi L.   +3 more
doaj   +2 more sources

Correlating topological indices with physicochemical properties in 15 polycyclic aromatic hydrocarbons [PDF]

open access: yesScientific Reports
$$PM_{2.5}$$ , a major air pollutant, often carries toxic components such as polycyclic aromatic hydrocarbons (PAHs), which pose potential health risks.
Zeming Huang   +5 more
doaj   +2 more sources

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