Results 1 to 10 of about 573,600 (205)

Role of Shift Vector in High-Harmonic Generation from Noncentrosymmetric Topological Insulators under Strong Laser Fields [PDF]

open access: yesPhysical Review X, 2022
As a promising avenue to obtain a new extreme ultraviolet light source and detect electronic properties, high-harmonic generation (HHG) has been actively developed in both theory and experiment.
Chen Qian   +8 more
doaj   +2 more sources

A relation between chiral central charge and ground state degeneracy in 2+1-dimensional topological orders

open access: yesPhysical Review Research, 2020
A bosonic topological order on $d$-dimensional closed space $\Sigma^d$ may have degenerate ground states. The space $\Sigma^d$ with different shapes (different metrics) form a moduli space ${\cal M}_{\Sigma^d}$. Thus the degenerate ground states on every
Kong, Liang, Wen, Xiao-Gang
core   +2 more sources

Fixed-Point Theory on a Frechet Topological Vector Space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2011
We establish some versions of fixed-point theorem in a Frechet topological vector space E. The main result is that every map A=BC (where B is a continuous map and C is a continuous linear weakly compact operator) from a closed convex subset of a Frechet ...
Afif Ben Amar   +2 more
doaj   +2 more sources

α-Topological Vector Spaces

open access: yesScience Journal of University of Zakho, 2017
The main objective of this paper is to present the study of α-topological vector spaces. α-topological vector spaces are defined by using α-open sets and α-irresolute mappings.
Hariwan Z. Ibrahim
doaj   +2 more sources

Common Fixed Points for Maps on Topological Vector Space Valued Cone Metric Spaces

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2009
We introduced a notion of topological vector space valued cone metric space and obtained some common fixed point results. Our results generalize some recent results in the literature.
Ismat Beg, Akbar Azam, Muhammad Arshad
doaj   +2 more sources

Fixed Point in Topological Vector Space-Valued Cone Metric Spaces

open access: yesFixed Point Theory and Applications, 2010
We obtain common fixed points of a pair of mappings satisfying a generalized contractive type condition in TVS-valued cone metric spaces. Our results generalize some well-known recent results in the literature.
Beg Ismat, Arshad Muhammad, Azam Akbar
doaj   +3 more sources

Algebraic characterisation of hyperspace corresponding to topological vector space [PDF]

open access: yesJournal of Hyperstructures, 2023
Let X be a Hausdor  topological vector space over the field of real or complex numbers. When Vietoris topology is given,the hyperspace ℘(X) of all nonempty compact subsets of X forms a topological exponential vector space over the same field. Exponential
Jayeeta Saha, Sandip Jana
doaj   +1 more source

Topological Structures of Energy Flow: Poynting Vector Skyrmions. [PDF]

open access: yesPhysical Review Letters, 2023
Topological properties of energy flow of light are fundamentally interesting and may introduce novel physical phenomena associated with directional light scattering and optical trapping.
Sicong Wang   +9 more
semanticscholar   +1 more source

Bloch Point Quadrupole Constituting Hybrid Topological Strings Revealed with Electron Holographic Vector Field Tomography [PDF]

open access: yesAdvances in Materials, 2023
Topological magnetic (anti)skyrmions are robust string‐like objects heralded as potential components in next‐generation topological spintronics devices due to their low‐energy manipulability via stimuli such as magnetic fields, heat, and electric/thermal
F. Yasin   +11 more
semanticscholar   +1 more source

Codiskcyclic sets of operators on complex topological vector spaces [PDF]

open access: yesProyecciones (Antofagasta), 2021
Let X be a complex topological vector space and L(X) the set of all continuous linear operators on X. In this paper, we extend the notion of the codiskcyclicity of a single operator T ∈ L(X) to a set of operators Γ ⊂ L(X).
M. Amouch, O. Benchiheb
semanticscholar   +1 more source

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