Abstract:We study the only missing case in the classification of quantum SL(3, C)'s undertaken in our paper [J. of Algebra 213 (1999), 721-756], thereby completing this classification.
“…Two papers of Ohn [16] and [17] dealt with the classification of quantum analogs of SL (3). The initial postulate there was that the representation theory for a quantum SL(3) should be identical to that of the ordinary SL(3), including complete reducibility among other things.…”
“…Two papers of Ohn [16] and [17] dealt with the classification of quantum analogs of SL (3). The initial postulate there was that the representation theory for a quantum SL(3) should be identical to that of the ordinary SL(3), including complete reducibility among other things.…”
“…But such nice quotients rarely exist. For instance no traditional quantum group can coact on a 3-dimensional elliptic Sklyanin algebra [21], a basic object in non-commutative algebraic geometry [1]. On the other hand, despite its size end(A) is reasonable whenever A is.…”
For any Koszul Artin-Schelter regular algebra A, we consider a version of the universal Hopf algebra aut(A) coacting on A, introduced by Manin. To study the representations (i.e. finite dimensional comodules) of this Hopf algebra, we use the Tannaka-Krein formalism. Specifically, we construct an explicit combinatorial rigid monoidal category U , equipped with a functor M to finite dimensional vector spaces such that aut(A) = coend U (M ). Using this pair (U , M ) we show that aut(A) is quasi-hereditary as a coalgebra and in addition is derived equivalent to the representation category of U .− → M (λ) and is thus in End U2 (M ). From the commutativity it follows that h induces f so γ(h) = f .Let I := λ∈Λ2−Λ1 I λ := λ∈Λ2−Λ1 Hom k (∇(λ), ∆(λ)) = ker β be the ideal constructed in Theorem 6.2.3.
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