Finite-dimensional irreducible modules of the Bannai–Ito algebra at characteristic zero

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Abstract

Assume that F is algebraically closed with characteristic 0. A central extension BI of the Bannai–Ito algebras is a unital associative F-algebra generated by X, Y, Z, and the relations assert that each of {X,Y}-Z,{Y,Z}-X,{Z,X}-Yis central in BI. In this paper, we classify the finite-dimensional irreducible BI-modules up to isomorphism. As we will see, the elements X, Y, Z are not always diagonalizable on finite-dimensional irreducible BI-modules.

Original languageEnglish
Pages (from-to)2519-2541
Number of pages23
JournalLetters in Mathematical Physics
Volume110
Issue number9
DOIs
StatePublished - 1 Sep 2020

Keywords

  • Bannai–Ito algebra
  • Irreducible modules
  • Universal property

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