lusztig symmetries
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2010 ◽  
Vol 09 (05) ◽  
pp. 725-762 ◽  
Author(s):  
XUEKUN CHEN ◽  
SHILIN YANG

We first construct algebra automorphisms Ti (1 ≤ i ≤ r) of ℤ2-graded Hopf algebra Uq( osp (1|2r)), which are called Lusztig's symmetries. It is shown that they satisfy braid group relations. The algebraic automorphisms of Uq( osp (1|2r)) are also described.


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