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U_{q}(sl_{2}) at fourth root of unity

D. Kastler·T. Krajewski·P. Seibt·K. Valavane
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Abstract

In this paper, we study finite dimensional quotients of the Hopf algebra U_{q}(sl_{2}) at fourth root of unity. We give explicitly all the corresponding automorphisms, real forms and idempotents.

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D. Kastler, T. Krajewski, P. Seibt, K. Valavane. 1999-12-22. U_{q}(sl_{2}) at fourth root of unity. https://arxiv.org/abs/math/9912185

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