Results 31 to 40 of about 148,749 (259)

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

Downhill Zagreb Topological Indices of Graphs

open access: yesInternational 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
doaj  

The topological structure of the vortices in the O(n) symmetric TDGL model

open access: yes, 1998
In the light of $\phi $--mapping method and topological current theory, the topological structure of the vortex state in TDGL model and the topological quantization of the vortex topological charges are investigated.
Bray   +21 more
core   +1 more source

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   +1 more source

Topological Descriptors of M-Carbon Mr,s,t

open access: yesJournal 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
doaj   +1 more source

Topological Properties and Entropy Calculations of Aluminophosphates

open access: yesMathematics, 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
doaj   +1 more source

Resolving the Topological Classification of Bismuth with Topological Defects

open access: yes, 2019
Bulk boundary correspondence in topological materials allows to study their bulk topology through the investigation of their topological boundary modes. However, for classes that share similar boundary phenomenology, the growing diversity of topological ...
Avraham, Nurit   +8 more
core   +1 more source

On Topological Indices of mth Chain Hex-Derived Network of Third Type

open access: yesFrontiers 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
doaj   +1 more source

Bulk-Edge correspondence for two-dimensional Floquet topological insulators

open access: yes, 2018
Floquet topological insulators describe independent electrons on a lattice driven out of equilibrium by a time-periodic Hamiltonian, beyond the usual adiabatic approximation.
Graf, Gian Michele, Tauber, Clément
core   +1 more source

Reconfigurable Three‐Dimensional Superconducting Nanoarchitectures

open access: yesAdvanced Functional Materials, EarlyView.
3D superconducting nanostructures offer new possibilities for emergent physical phenomena. However, fabricating complex geometries remains challenging. Here 3D nanoprinting of complex 3D superconducting nanoarchitectures is established. As well as propagating superconducting vortices in 3D, anisotropic superconducting properties with geometric ...
Elina Zhakina   +11 more
wiley   +1 more source

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