Results 131 to 140 of about 110,593 (279)
Advances in Mathematical Physics, 2017 We consider the special magnetic Laplacian given by Δν,μ=4∑j=1n∂2/∂zj∂zj¯+2iνE+E¯+n+2μE-E¯-ν2+μ2z2. We show that Δν,μ is connected to the sub-Laplacian of a group of Heisenberg type given by C ×ω Cn realized as a central extension of the real Heisenberg ...
Aymane El Fardi +2 more
doaj +1 more source
ICT knowledge absorptive capacity: A critical factor for technology integration in schools
British Journal of Educational Technology, EarlyView.Abstract This study examines whether and how a school's information and communication technology (ICT) knowledge absorptive capacity (ACAP) affects technology integration in schools. In addition, it investigates the influence of various contextual factors on the degree of contingency of ACAP, such as activation triggers, social integration mechanisms ...
Sandra Fischer‐Schöneborn +4 more
wiley +1 more source
Mikhlin-Type Hp Multiplier Theorem on the Heisenberg Group
AxiomsThe classical Fourier multiplier theorem by Mikhlin in Hardy spaces is extended to the Heisenberg group. The proof relies on the theories of atom and molecule functions and the property of special Hermite functions.
Jinsen Xiao, Jianxun He, Yingzhu Wu
doaj +1 more source
JCMS: Journal of Common Market Studies, EarlyView.Abstract Research has solidly established that the presidency of the Council of the European Union can significantly influence the Council's activity. However, it has not yet explained whether, why and how Council actors anticipate the different national executives scheduled to lead them.
Gisela Hernández
wiley +1 more source
The Measure Algebra of the Heisenberg Group
Journal of Functional Analysis, 1999 The article is about irreducible representations of the convolution algebra \(M(\mathbb{H}_n)\) of bounded regular Borel measures on the unimodular Heisenberg group \(\mathbb{H}_n= \mathbb{C}^n\times \mathbb{R}\) for which the group structure is given by \[ (a,t)(b,s)= \left(a+b, s+t+\text{Im}{b-a\over 2} \right). \] A representation of \(\mathbb{H}_n\)
openaire +3 more sources
Spectra for Gelfand pairs associated with the Heisenberg group [PDF]
, 1996 Chal Benson +3 more
openalex +1 more source
Heisenberg Group-Based Digital Signatures for Secure Communications
IEEE AccessThis paper proposes a new digital signature algorithm that employs the Heisenberg group over a prime field and exploits its structure to provide strong cryptographic properties. The developed scheme involves the Heisenberg group within a commutator-based
Najla Althuniyan +4 more
doaj +1 more source
Modeling of magnetic properties of A2BB′O6 compounds using ab initio and Monte Carlo methods
Journal of the American Ceramic Society, Volume 108, Issue 12, December 2025.Ab initio and Monte Carlo simulations were employed to maximize the estimated Curie temperature of A2BB′O6 oxides. It was revealed that the element A ion radius should be as small as possible, while the magnetic moments of B and B′ elements should be as large as possible.
Martin Heczko +3 more
wiley +1 more source
Integral quantization based on the Heisenberg–Weyl group
European Physical Journal C: Particles and FieldsWe develop a relativistic framework of integral quantization applied to the motion of spinless particles in the four-dimensional Minkowski spacetime. The proposed scheme is based on coherent states generated by the action of the Heisenberg–Weyl group and
Aleksandra Pȩdrak +4 more
doaj +1 more source
Is every product system concrete?
Transactions of the London Mathematical Society, Volume 12, Issue 1, December 2025.Abstract Is every product system of Hilbert spaces over a semigroup P$P$ concrete, that is, isomorphic to the product system of an E0$E_0$‐semigroup over P$P$? The answer is no if P$P$ is discrete, cancellative and does not embed in a group. However, we show that the answer is yes for a reasonable class of semigroups.
S. Sundar
wiley +1 more source