Uq(sl2) at fourth root of unity
D. Kastler, T. Krajewski, P. Seibt, K. Valavane
math.QAarXiv:math/9912185
Abstract
In this paper, we study finite dimensional quotients of the Hopf algebra Uq(sl2) at fourth root of unity. We give explicitly all the corresponding automorphisms, real forms and idempotents.
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