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arXiv 2008.09081math.RTmath.CTmath.QA
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动力学量子群的范畴方法

A categorical approach to dynamical quantum groups

Artem Kalmykov, Pavel Safronov

摘要:

利用Harish-Chandra双模范畴给出了动力学量子群的范畴化观点.我们证明了Harish-Chandra双模的幺半范畴范畴内的遗忘函子的Tannaka对偶定理。此外,我们证明了标准动力学量子群$F(G)$和$F_q(G)$与经典和量子Harish-Chandra双模的抛物限制函子有关.最后,我们展示了一个自然的Weyl对称性的抛物型限制函子使用Zhelobenko运营商,并表明,它引起的行动的动态外尔群。

英文摘要:

We present a categorical point of view on dynamical quantum groups in terms of categories of Harish-Chandra bimodules. We prove Tannaka duality theorems for forgetful functors into the monoidal category of Harish-Chandra bimodules in terms of a slight modification of the notion of a bialgebroid. Moreover, we show that the standard dynamical quantum groups $F(G)$ and $F_q(G)$ are related to parabolic restriction functors for classical and quantum Harish-Chandra bimodules. Finally, we exhibit a natural Weyl symmetry of the parabolic restriction functor using Zhelobenko operators and show that it gives rise to the action of the dynamical Weyl group.

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