Invariant Tensors and Cellular Categories
نویسنده
چکیده
Let U be the quantised enveloping algebra associated to a Cartan matrix of finite type. Let W be the tensor product of a finite list of highest weight representations of U . Then EndU (W ) has a basis called the dual canonical basis and this gives an integral form for EndU (W ). We show that this integral form is cellular by using results due to Lusztig.
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