Results 151 to 160 of about 5,897,592 (221)

Topological space

Общенациональный интерактивный энциклопедический портал "Знания", 2022
Alexei Yurievich Zoubov
openaire   +2 more sources

Topological Space‐Time Photonic Transitions in Angular‐Momentum‐Biased Metasurfaces

Advanced Optical Materials, 2020
In this paper, topological space‐time photonic transition of light in angular‐momentum‐biased metasurfaces is established, which yields a superposition of orbital‐angular‐momentum (OAM)‐carrying beams at distinct frequency harmonics upon scattering whose
H. Barati Sedeh   +2 more
semanticscholar   +1 more source

Triangulating topological spaces

Proceedings of the tenth annual symposium on Computational geometry - SCG '94, 1994
Given a subspace [Formula: see text] and a finite set S⊆ℝd, we introduce the Delaunay complex, [Formula: see text], restricted by [Formula: see text]. Its simplices are spanned by subsets T⊆S for which the common intersection of Voronoi cells meets [Formula: see text] in a non-empty set. By the nerve theorem, [Formula: see text] and [Formula: see text]
Edelsbrunner, Herbert, Shah, Nimish R.
openaire   +1 more source

On β*-supra topological spaces

Journal of Discrete Mathematical Sciences & Cryptography, 2023
In this paper, a new type of supra closed sets is introduced which we called supra β*-closed sets in a supra topological space. A new set of separation axioms is defined, and its many properties are examined. The relationships between supra β*-Ti –spaces
Ehab A. Ghaloob, A. R. Sadek
semanticscholar   +1 more source

Ultracomplete Topological Spaces

Acta Mathematica Hungarica, 2001
If \(X\) is a set and \(\Sigma\) is a set of coverings of \(X\), then we can consider \((X,\Sigma)\) to be a generalized uniform space. This point of view originates from the work of \textit{J. W. Tukey} [Convergence and uniformity in topology, Princeton (1940)] who used \((X,\Sigma)\), where \(\Sigma\) fulfills some appropriate conditions, as another ...
Buhagiar, D., Yoshioka, I.
openaire   +1 more source

Symmetry protected topological phases under decoherence

Quantum, 2022
We investigate mixed states exhibiting nontrivial topological features, focusing on symmetry-protected topological (SPT) phases under various types of decoherence.
Jong Yeon Lee, Yi-Zhuang You, Cenke Xu
semanticscholar   +1 more source

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