Results 11 to 20 of about 273,375 (330)

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

Topological Inference of the Conley Index [PDF]

open access: greenJournal of Dynamics and Differential Equations, 2022
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 ...
Ka Man Yim, Vidit Nanda
openalex   +4 more sources

Magnetooptical determination of a topological index

open access: yesnpj Quantum Materials, 2017
Topological matter: magnetooptical characterization Opening a gap in a Dirac fermion system leads to the formation of a trivial or a non-trivial phase.
Badih A. Assaf   +6 more
doaj   +4 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

Topological Study of Zeolite Socony Mobil-5 via Degree-Based Topological Indices

open access: yesJournal 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
doaj   +1 more source

Eccentricity-Based Topological Invariants of Dominating David-Derived Networks

open access: yesJournal of Chemistry, 2021
A topological index is a numerical descriptor of the molecular structure based on certain topological features of the corresponding molecular graph. Topological indices are scientific contemplations of a graph that outline its subatomic topology and are ...
Muhammad Imran   +2 more
doaj   +1 more source

Improving Probabilistic Flooding Using Topological Indexes [PDF]

open access: yes2019 15th International Conference on Signal-Image Technology & Internet-Based Systems (SITIS), 2019
Unstructured networks are characterized by constrained resources and require protocols that efficiently utilize bandwidth and battery power. Probabilistic flooding, allows nodes to rebroadcast RREQ packets with some probability p, thus reducing the overhead. The key issue in of this algorithm consists of determining p.
Kifle, D, Gianini, G, Libsie, M
openaire   +3 more sources

Computing Some Degree-Based Topological Indices of Honeycomb Networks

open access: yesComplexity, 2022
A topological index is a numeric quantity related with the chemical composition claiming to correlate the chemical structure with different chemical properties. Topological indices serve to predict physicochemical properties of chemical substance.
Lili Gu   +4 more
doaj   +1 more source

Majorana bound state of a Bogoliubov-de Gennes-Dirac Hamiltonian in arbitrary dimensions [PDF]

open access: yes, 2011
We study a Majorana zero-energy state bound to a hedgehog-like point defect in a topological superconductor described by a Bogoliubov-de Gennes (BdG)-Dirac type effective Hamiltonian. We first give an explicit wave function of a Majorana state by solving
Fujiwara, Takanori   +2 more
core   +2 more sources

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