Results 11 to 20 of about 191,132 (284)

Composition operators between p -Bloch space and q -Bloch space in the unit ball*

open access: yesProgress in Natural Science, 2003
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhou, Zehua, Zeng, Honggang
openaire   +4 more sources

Observation and uses of position-space Bloch oscillations in an ultracold gas

open access: yesPhysical Review Letters, 2018
We report the direct observation and characterization of position-space Bloch oscillations using an ultracold gas in a tilted optical lattice. While Bloch oscillations in momentum space are a common feature of optical lattice experiments, the real-space ...
Driben, Rodislav   +10 more
core   +4 more sources

Symmetry and localization in periodic crystals: triviality of Bloch bundles with a fermionic time-reversal symmetry [PDF]

open access: yes, 2014
We describe some applications of group- and bundle-theoretic methods in solid state physics, showing how symmetries lead to a proof of the localization of electrons in gapped crystalline solids, as e.g. insulators and semiconductors.
Monaco, Domenico, Panati, Gianluca
core   +2 more sources

Stiefel-Whitney topological charges in a three-dimensional acoustic nodal-line crystal

open access: yesNature Communications, 2023
Band topology of materials describes the extent Bloch wavefunctions are twisted in momentum space. Such descriptions rely on a set of topological invariants, generally referred to as topological charges, which form a characteristic class in the ...
Haoran Xue   +6 more
doaj   +1 more source

Nonequilibrium Approach to Bloch-Peierls-Berry Dynamics [PDF]

open access: yes, 2006
We examine the Bloch-Peierls-Berry dynamics under a classical nonequilibrium dynamical formulation. In this formulation all coordinates in phase space formed by the position and crystal momentum space are treated on equal footing.
B. Aebischer   +7 more
core   +3 more sources

Composition Operators and the Closure of Morrey Space in the Bloch Space

open access: yesJournal of Function Spaces, 2019
In this paper, we characterize the closure of the Morrey space in the Bloch space. Furthermore, the boundedness and compactness of composition operators from the Bloch space to the closure of the Morrey space in the Bloch space are investigated.
Nanhui Hu, Xiangling Zhu
doaj   +1 more source

Toeplitz-Superposition Operators on Analytic Bloch Spaces [PDF]

open access: yesJournal of Function Spaces, 2021
The important purpose of this current work is to study a new class of operators, the so-called Toeplitz-superposition operators as an expansion of the weighted known composition operators, induced by such continuous entire functions mapping on bounded specific sets.
M. A. Bakhit, A. El-Sayed Ahmed
openaire   +2 more sources

Distance from Bloch-Type Functions to the Analytic Space F(p,q,s)

open access: yesAbstract and Applied Analysis, 2014
The analytic space F(p,q,s) can be embedded into a Bloch-type space. We establish a distance formula from Bloch-type functions to F(p,q,s), which generalizes the distance formula from Bloch functions to BMOA by Peter Jones, and to F(p,p-2,s) by Zhao.
Cheng Yuan, Cezhong Tong
doaj   +1 more source

Integral type operators from normal weighted Bloch spaces to QT,S spaces

open access: yesJournal of Hebei University of Science and Technology, 2016
Operator theory is an important research content of the analytic function space theory. The discussion of simultaneous operator and function space is an effective way to study operator and function space.
Yongyi GU, Wenjun YUAN, Fanning MENG
doaj   +1 more source

Weighted Composition Operators from Logarithmic Bloch-Type Spaces to Bloch-Type Spaces

open access: yesJournal of Inequalities and Applications, 2009
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Agarwal RaviP, Stević Stevo
openaire   +3 more sources

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