Results 21 to 30 of about 3,483,162 (228)

On the extensions of infinite-dimensional representations of Lie semigroups

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2002
The necessary and sufficient conditions have been obtained for extendability of a Banach representation of a generating Lie semigroup S to a local representation of the Lie group G generated by S when the tangent wedge of S is a Lie semialgebra. The most
Adolf R. Mirotin
doaj   +1 more source

How to perform the coherent measurement of a curved phase space by continuous isotropic measurement. I. Spin and the Kraus-operator geometry of $\mathrm{SL}(2,\mathbb{C})$ [PDF]

open access: yesQuantum, 2023
The generalized $Q$-function of a spin system can be considered the outcome probability distribution of a state subjected to a measurement represented by the spin-coherent-state (SCS) positive-operator-valued measure (POVM).
Christopher S. Jackson, Carlton M. Caves
doaj   +1 more source

Non linear representations of Lie groups [PDF]

open access: yesAnnales scientifiques de l'École normale supérieure, 1977
International ...
Flato, Moshe   +2 more
openaire   +4 more sources

On Square-Integrable Representations of A Lie Group of 4-Dimensional Standard Filiform Lie Algebra

open access: yesCauchy: Jurnal Matematika Murni dan Aplikasi, 2020
In this paper, we study irreducible unitary representations of a real standard filiform Lie group with dimension equals 4 with respect to its basis. To find this representations we apply the orbit method introduced by Kirillov. The corresponding orbit of
Edi Kurniadi
doaj   +1 more source

On Lie group representations and operator ranges [PDF]

open access: yesProceedings of the American Mathematical Society, 2021
In this paper, Lie group representations on Hilbert spaces are studied in relation with operator ranges. Let R \mathcal {R} be an operator range of a Hilbert space H \mathcal {H} . Given the set Λ \Lambda of R \mathcal {R} -invariant operators, and
openaire   +3 more sources

An amenability-like property of finite energy path and loop groups

open access: yesComptes Rendus. Mathématique, 2021
We show that the groups of finite energy loops and paths (that is, those of Sobolev class $H^1$) with values in a compact connected Lie group, as well as their central extensions, satisfy an amenability-like property: they admit a left-invariant mean on ...
Pestov, Vladimir
doaj   +1 more source

Lie Supergroups Obtained from 3-Dimensional Lie Superalgebras Associated to the Adjoint Representation and Having a 2-Dimensional Derived Ideal

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2008
We give the explicit multiplication law of the Lie supergroups for which the base manifold is a 3-dimensional Lie group and whose underlying Lie superalgebra g=g0⊕g1 which satisfies g1=g0, g0 acts on g1 via the adjoint representation and g0 has a 2 ...
I. Hernández, R. Peniche
doaj   +1 more source

A Combination of Lie Group Machine Learning and Deep Learning for Remote Sensing Scene Classification Using Multi-Layer Heterogeneous Feature Extraction and Fusion

open access: yesRemote Sensing, 2022
Discriminative feature learning is the key to remote sensing scene classification. Previous research has found that most of the existing convolutional neural networks (CNN) focus on the global semantic features and ignore shallower features (low-level ...
Chengjun Xu, Guobin Zhu, Jingqian Shu
doaj   +1 more source

Scale robust point matching‐Net: End‐to‐end scale point matching using Lie group

open access: yesIET Computer Vision, 2022
Point cloud matching is an important procedure in a variety of computer vision tasks. Traditional point cloud matching methods have made great progress, while neural network‐based approaches are becoming a trend, powered by their strong capabilities of ...
Xin Wang   +4 more
doaj   +1 more source

Completeness of coherent state subsystems for nilpotent Lie groups

open access: yesComptes Rendus. Mathématique, 2022
Let $G$ be a nilpotent Lie group and let $\pi $ be a coherent state representation of $G$. The interplay between the cyclicity of the restriction $\pi |_{\Gamma }$ to a lattice $\Gamma \le G$ and the completeness of subsystems of coherent states based on
van Velthoven, Jordy Timo
doaj   +1 more source

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