A novel quantum affine algebra of type a(1)1 and its PBW basis

Naihong Hu, Rushu Zhuang

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

3 Scopus citations

Abstract

In this paper, we construct a novel quantum affine algebra Uq(Sl̂2) associated to the quantum structure constant matrix (formula presented). We prove that it is neither isomorphic to the usual quantum affine algebra of type A(1)1 nor to its co-opposite as Hopf algebras. We also introduce a quantum Weyl group as a subgroup of the group of algebra automorphisms of Uq(Sl̂2). Using this quantum Weyl group, we give an explicit description of a Poincaré-Birkhoff-Witt basis of Uq(Sl̂2).

Original languageEnglish
Title of host publicationHopf Algebras, Tensor Categories and Related Topics
EditorsNicolás Andruskiewitsch, Gongxiang Liu, Susan Montgomery, Yinhuo Zhang
PublisherAmerican Mathematical Society
Pages153-194
Number of pages42
ISBN (Print)9781470456245
DOIs
StatePublished - 2021
EventInternational Workshop on Hopf Algebras and Tensor Categories, 2019 - Nanjing, China
Duration: 9 Sep 201913 Sep 2019

Publication series

NameContemporary Mathematics
Volume771
ISSN (Print)0271-4132
ISSN (Electronic)1098-3627

Conference

ConferenceInternational Workshop on Hopf Algebras and Tensor Categories, 2019
Country/TerritoryChina
CityNanjing
Period9/09/1913/09/19

Keywords

  • Admissible quantum affine algebra
  • PBW basis
  • Quanutm Weyl group

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