Results 41 to 50 of about 150,131 (321)
Three-dimensional topological insulators in the octahedron-decorated cubic lattice
, 2011 We investigate a tight-binding model of the octahedron-decorated cubic lattice with spin-orbit coupling. We calculate the band structure of the lattice and evaluate the Z_2 topological indices.
Hou, Jing-Min +2 more
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On Topological Indices and Their Reciprocals
Match Communications in Mathematical and in Computer Chemistry, 2023 Summary: If \(TI(G)=\sum\limits_\gamma F(\gamma)\) is a topological index of the graph \(G \), then \(RTI(G)=\sum\limits_\gamma \frac{1}{F(\gamma)}\) is the respective reciprocal index. In contemporary mathematical chemistry, a large number of pairs \((TI,RTI)\) have been separately introduced and studied, but their mutual relations eluded attention ...
Ivan Gutman +2 more
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Scientific Annals of Computer ScienceThis article is concerned with the topological characterization of the antibiotic Zosurabalpin through the computation of degree and associated neighborhood degree sum-based topological indices.
Shibsankar Das +4 more
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On Topological Indices of mth Chain Hex-Derived Network of Third Type
Frontiers in Physics, 2020 In theoretical chemistry, the numerical parameters that are used to characterize the molecular topology of graphs are called topological indices. Several physical and chemical properties like boiling point, entropy, heat formation, and vaporization ...
Yuhong Huo +5 more
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Downhill Zagreb Topological Indices of Graphs
International Journal of Analysis and Applications, 2021 Topological indices are graph invariants determined by the distance or degree of vertices of the molecular graph. Topological indices have been used effectively in chemical graph theory in explaining the structures and predicting certain physicochemical ...
Bashair Al-Ahmadi +2 more
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Topological properties of Graphene using some novel neighborhood degree-based topological indices
International 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
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Topological Properties and Entropy Calculations of Aluminophosphates
Mathematics, 2023 Topological indices are invariant numerical quantities of a graph that give facts about the structure of graphs and are found to be very helpful in predicting the physical properties of aluminophosphates.
Jeyaraj Sahaya Vijay +6 more
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Magnetic monopoles in a charged two-condensate Bose-Einstein system
, 2004 We propose that a charged two-condensate Bose system possesses point-like topological defects which can be interpreted as magnetic monopoles. By making use of the $\phi$-mapping theory, the topological charges of these magnetic monopoles can be expressed
Jiang, Ying
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Affine Graphs and their Topological Indices [PDF]
Journal of Mathematics, 2021 Graphs are essential tools to illustrate relationships in given datasets visually. Therefore, generating graphs from another concept is very useful to understand it comprehensively. This paper will introduce a new yet simple method to obtain a graph from any finite affine plane.
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On Molecular Descriptors of Carbon Nanocones
Biomolecules, 2018 Many degree-based topological indices can be obtained from the closed-off M-polynomial of a carbon nanocone. These topological indices are numerical parameters that are associated with a structure and, in combination, determine the properties of the ...
Waqas Nazeer +4 more
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