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Journal Articles Letters in Mathematical Physics Year : 2019

FRT presentation of classical Askey–Wilson algebras


Automorphisms of the infinite dimensional Onsager algebra are introduced. Certain quotients of the Onsager algebra are formulated using a polynomial in these automorphisms. In the simplest case, the quotient coincides with the classical analog of the Askey-Wilson algebra. In the general case, generalizations of the classical Askey-Wilson algebra are obtained. The corresponding class of solutions of the non-standard classical Yang-Baxter algebra are constructed, from which a generating function of elements in the commutative subalgebra is derived. We provide also another presentation of the Onsager algebra and of the classical Askey-Wilson algebras.
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hal-02152774 , version 1 (11-06-2019)



Pascal Baseilhac, Nicolas Crampé. FRT presentation of classical Askey–Wilson algebras. Letters in Mathematical Physics, 2019, 109, pp.2187-2207. ⟨10.1007/s11005-019-01182-y⟩. ⟨hal-02152774⟩
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