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Quantized semisimple Lie groups

Rita Fioresi, Robert Yuncken (2024)

Archivum Mathematicum

The goal of this expository paper is to give a quick introduction to q -deformations of semisimple Lie groups. We discuss principally the rank one examples of 𝒰 q ( 𝔰𝔩 2 ) , 𝒪 ( SU q ( 2 ) ) , 𝒟 ( SL q ( 2 , ) ) and related algebras. We treat quantized enveloping algebras, representations of 𝒰 q ( 𝔰𝔩 2 ) , generalities on Hopf algebras and quantum groups, * -structures, quantized algebras of functions on q -deformed compact semisimple groups, the Peter-Weyl theorem, * -Hopf algebras associated to complex semisimple Lie groups and the Drinfeld double, representations...

Quantum Fibre Bundles. An Introduction

Tomasz Brzeziński (1997)

Banach Center Publications

An approach to construction of a quantum group gauge theory based on the quantum group generalisation of fibre bundles is reviewed.

Quantum isometries and group dual subgroups

Teodor Banica, Jyotishman Bhowmick, Kenny De Commer (2012)

Annales mathématiques Blaise Pascal

We study the discrete groups Λ whose duals embed into a given compact quantum group, Λ ^ G . In the matrix case G U n + the embedding condition is equivalent to having a quotient map Γ U Λ , where F = { Γ U U U n } is a certain family of groups associated to G . We develop here a number of techniques for computing F , partly inspired from Bichon’s classification of group dual subgroups Λ ^ S n + . These results are motivated by Goswami’s notion of quantum isometry group, because a compact connected Riemannian manifold cannot have non-abelian...

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