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Related papers: Quantum Co-Adjoint Orbits of the Group of Affine T…

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Using $\star$-product on Co-adjoint orbits (K-orbits) of the $\MD_4$- groups we obtain quantum half-planes, quantum hyperbolic cylinders, quantum hyperbolic paraboloids...via Fedosov deformation quantization. From this we have corresponding…

Quantum Algebra · Mathematics 2007-05-23 Nguyen Viet Hai

We present explicit formulas for deformation quantization on the co-adjoint orbits of the real diamond Lie group. From this we obtain quantum half-plans, quantum hyperbolic cylinders, quantum hyperbolic paraboloids via Fedosov deformation…

Quantum Algebra · Mathematics 2007-05-23 Nguyen Viet Hai

We demonstrate the main idea of constructing irreducible unitary representations of Lie groups by using Fedosov deformation quantization in the concrete case of the group Aff(R) of affine transformations of the real straight line. By an…

Quantum Algebra · Mathematics 2007-05-23 Do Ngoc Diep , Nguyen Viet Hai

In this paper we study algebraic supergroups and their coadjoint orbits as affine algebraic supervarieties. We find an algebraic deformation quantization of them that can be related to the fuzzy spaces of non commutative geometry.

Quantum Algebra · Mathematics 2009-11-10 R. Fioresi , M. A. Lledo

A method for the deformation quantization of coadjoint orbits of semisimple Lie groups is proposed. It is based on the algebraic structure of the orbit. Its relation to geometric quantization and differentiable deformations is explored.

Quantum Algebra · Mathematics 2009-10-31 M. A. Lledó

The classification of the unitary irreducible representations of symmetry groups is a cornerstone of modern quantum physics, as it provides the fundamental building blocks for constructing the Hilbert spaces of theories admitting these…

High Energy Physics - Theory · Physics 2025-07-16 Giulio Neri , Ludovic Varrin

We discuss quantum deformation of the affine transformation group and its Lie algebra. It is shown that the quantum algebra has a non-cocommutative Hopf algebra structure, simple realizations and quantum tensor operators. The deformation of…

High Energy Physics - Theory · Physics 2017-02-01 N. Aizawa , H. -T. Sato

We study properties of a family of algebraic star products defined on coadjoint orbits of semisimple Lie groups. We connect this description with the point of view of differentiable deformations and geometric quantization.

Quantum Algebra · Mathematics 2009-10-31 M. A. Lledó

In this paper we construct quantum analogs of strata of coadjoint orbits and describe their representations. This kind objects play an important role in describing quantum groups as repeated extensions of quantum strata.

Quantum Algebra · Mathematics 2007-05-23 Do Ngoc Diep

In this paper we give an effective method for finding a unique representative of each orbit of the adjoint and coadjoint action of the real affine orthogonal group on its Lie algebra. In both cases there are orbits which have a modulus that…

Representation Theory · Mathematics 2024-10-08 Richard Cushman , Wilberd van der Kallen

In this paper we find a representative of each orbit of the adjoint action of a real affine classical group of its Lie algebra. These orbits are not determined by the usual Jordan invariants of eigenvalues and block sizes, but require a…

Symplectic Geometry · Mathematics 2021-11-02 Richard Cushman

A strict quantization of a compact symplectic manifold $S$ on a subset $I\subseteq\R$, containing 0 as an accumulation point, is defined as a continuous field of $C^*$-algebras $\{A_{\hbar}\}_{\hbar\in I}$, with $A_0=C_0(S)$, and a set of…

Mathematical Physics · Physics 2009-10-31 N. P. Landsman

We present a one-to-one correspondence between equivalence classes of unitary irreducible representations and coadjoint orbits for a class of pro-Lie groups including all connected locally compact nilpotent groups and arbitrary infinite…

Representation Theory · Mathematics 2017-09-20 Daniel Beltita , Amel Zergane

We obtain a family of strict $\hat G$-invariant products on the space of holomorphic functions on a semisimple coadjoint orbit of a complex connected semisimple Lie group $\hat G$. By restriction, we also obtain strict $G$-invariant…

Quantum Algebra · Mathematics 2022-01-21 Philipp Schmitt

In this paper we make a review of the results obtained in previous works by the authors on deformation quantization of coadjoint orbits of semisimple Lie groups. We motivate the problem with a new point of view of the well known Moyal-Weyl…

Quantum Algebra · Mathematics 2007-05-23 R. Fioresi , M. A. Lledo

The purpose of this paper is to apply deformation quantization to the study of the coadjoint orbit method in the case of real reductive groups. We first prove some general results on the existence of equivariant deformation quantization of…

Representation Theory · Mathematics 2018-09-25 Naichung Conan Leung , Shilin Yu

Kirillov's orbit theory provides a powerful tool for the investigation of irreducible unitary representations of many classes of Lie groups. In a previous paper we used a modification hereof, called monomial linearisation, to construct a…

Representation Theory · Mathematics 2018-02-26 Qiong Guo , Markus Jedlitschky , Richard Dipper

The present article presents geometric quantization on cotangent bundles as a special instance of Kirillov's orbit method. To this end, the cotangent bundle is realized as a coadjoint orbit of an infinite-dimensional Lie group constructed…

Symplectic Geometry · Mathematics 2025-06-13 Michael Gjertsen , Alexander Schmeding

In this article we describe the coadjoint orbits of SL(2,$\mathbb R$). After choosing polarizations for each orbits, we pointed out the corresponding quantum coadjoint orbits and therefore unitary representations of SL(2,$\mathbb R$) via…

Quantum Algebra · Mathematics 2007-05-23 Do Duc Hanh

Let $(V,\gamma )$ be a real finite dimensional vector space with a symmetric bilinear form $\gamma $ whose kernel is spanned by a nonzero vector. The set of invertible real linear mappings of $(V, \gamma )$ into itself forms a Lie group…

Symplectic Geometry · Mathematics 2022-05-11 Richard Cushman
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