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arXiv · 1012.5261

A note on the $O_q(\hat{sl_2})$ algebra

P. Baseilhac·S. Belliard
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Abstract

An explicit homomorphism that relates the elements of the infinite dimensional non-Abelian algebra generating $O_q(\hat{sl_2})$ currents and the standard generators of the $q-$Onsager algebra is proposed. Two straightforward applications of the result are then considered: First, for the class of quantum integrable models which integrability condition originates in the $q-$Onsager spectrum generating algebra, the infinite $q-$deformed Dolan-Grady hierarchy is derived - bypassing the transfer matrix formalism. Secondly, higher Askey-Wilson relations that arise in the study of symmetric special functions generalizing the Askey-Wilson $q-$orthogonal polynomials are proposed.

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P. Baseilhac, S. Belliard. 2010-12-23. A note on the $O_q(\hat{sl_2})$ algebra. https://arxiv.org/abs/1012.5261

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