Results 31 to 40 of about 875,148 (315)

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

Haar expectations of ratios of random characteristic polynomials [PDF]

open access: yes, 2016
We compute Haar ensemble averages of ratios of random characteristic polynomials for the classical Lie groups K = O(N), SO(N), and USp(N). To that end, we start from the Clifford-Weyl algebera in its canonical realization on the complex of holomorphic ...
A Huckleberry   +10 more
core   +2 more sources

Equivariant K‐theory of compact Lie group actions with maximal rank isotropy [PDF]

open access: yesJournal of Mathematics and Physics, 2012
Let G denote a compact connected Lie group with torsion‐free fundamental group acting on a compact space X such that all the isotropy subgroups are connected subgroups of maximal rank. Let T⊂G be a maximal torus with Weyl group W.
A. Adem   +2 more
semanticscholar   +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

Exchange dynamical quantum groups [PDF]

open access: yes, 1999
For any simple Lie algebra g and any complex number q which is not zero or a nontrivial root of unity, we construct a dynamical quantum group (Hopf algebroid), whose representation theory is essentially the same as the representation theory of the ...
Etingof, Pavel, Varchenko, Alexander
core   +4 more sources

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

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

A Survey on Weyl Calculus for Representations of Nilpotent Lie Groups [PDF]

open access: yesAIP Conference Proceedings, 2009
We survey some aspects of the pseudo-differential Weyl calculus for irreducible unitary representations of nilpotent Lie groups, ranging from the classical ideas to recently obtained results. The classical Weyl-H rmander calculus is recovered for the Schr dinger representation of the Heisenberg group.
I. Beltiţă   +6 more
openaire   +2 more sources

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

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