Results 1 to 10 of about 45,887 (166)

The twisted index and topological saddles

open access: yesJournal of High Energy Physics, 2022
The twisted index of 3d N $$ \mathcal{N} $$ = 2 gauge theories on S 1 × Σ has an algebro-geometric interpretation as the Witten index of an effective supersymmetric quantum mechanics.
Mathew Bullimore   +3 more
doaj   +5 more sources

Forgotten topological index of chemical structure in drugs [PDF]

open access: yesSaudi Pharmaceutical Journal, 2016
Wei Gao   +2 more
exaly   +2 more sources

ISI(G) Topological Index of Sum Graphs For Some Finite Groups

open access: yesAcademic 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
doaj   +1 more source

On Certain Aspects of Topological Indices

open access: yesJournal 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
doaj   +1 more source

Novel Degree-Based Topological Descriptors of Fenofibrate Using M-Polynomial

open access: yesJournal 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
doaj   +1 more source

Study of Neighborhood Degree-Based Topological Indices via Direct and NM-Polynomial of Starphene Graph

open access: yesJournal of Function Spaces, 2022
Our objective is to compute the neighborhood degree-based topological indices via NM-polynomial for starphene. In the neighborhood degree-based topological indices, we compute the third version of the Zagreb index; neighborhood second Zagreb index ...
Deeba Afzal   +5 more
doaj   +1 more source

Computation of Revan Topological Indices for Phenol-Formaldehyde Resin

open access: yesJournal of Mathematics, 2022
Phenol-formaldehyde resin has a wide range of moldings. The phenolic resin retains properties at the freezing point; hence, it is difficult to determine its age.
Muhammad Kamran   +5 more
doaj   +1 more source

Topological Inference of the Conley Index

open access: yesJournal of Dynamics and Differential Equations, 2023
Abstract The Conley index of an isolated invariant set is a fundamental object in the study of dynamical systems. Here we consider smooth functions on closed submanifolds of Euclidean space and describe a framework for inferring the Conley index of any compact, connected isolated critical set of such a function with high confidence from a ...
Yim, KM, Nanda, V
openaire   +3 more sources

M-Polynomials and Degree-Based Topological Indices of the Molecule Copper(I) Oxide

open access: yesJournal of Chemistry, 2021
Topological indices are numerical parameters used to study the physical and chemical residences of compounds. Degree-based topological indices have been studied extensively and can be correlated with many properties of the understudy compounds.
Faryal Chaudhry   +5 more
doaj   +1 more source

Ve-Degree, Ev-Degree, and Degree-Based Topological Indices of Fenofibrate

open access: yesJournal 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
doaj   +1 more source

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