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Bannai–Ito algebras and the universal R-matrix of osp(1|2)

Abstract : The Bannai-Ito algebra BI(n) is viewed as the centralizer of the action of osp(1|2) in the n-fold tensor product of the universal algebra of this Lie superalgebra. The generators of this centralizer are constructed with the help of the universal R-matrix of osp(1|2). The specific structure of the osp(1|2) embeddings to which the centralizing elements are attached as Casimir elements is explained. With the generators defined, the structure relations of BI(n) are derived from those of BI(3) by repeated action of the coproduct and using properties of the R-matrix and of the generators of the symmetric group Sn.
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https://hal.archives-ouvertes.fr/hal-02890130
Contributor : Nicolas Crampé Connect in order to contact the contributor
Submitted on : Monday, July 6, 2020 - 10:20:11 AM
Last modification on : Tuesday, January 11, 2022 - 5:56:35 PM

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Nicolas Crampé, Luc Vinet, Meri Zaimi. Bannai–Ito algebras and the universal R-matrix of osp(1|2). Letters in Mathematical Physics, Springer Verlag, 2020, 110 (5), pp.1043-1055. ⟨10.1007/s11005-019-01249-w⟩. ⟨hal-02890130⟩

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