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arXiv 1202.0079math.DGhep-thmath.QA
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Poisson 2-群

Poisson 2-groups

Zhuo Chen, Mathieu Stienon, Ping Xu

摘要:

证明了Drinfeld的一个经典结果的2-范畴类似物:连通的、单连通的Poisson Lie 2-群和Lie 2-双代数之间存在一一对应。事实上,我们还证明了连通、单连通的拟Poisson 2-群与拟Lie 2-双代数之间存在一一对应。我们的方法依赖于一个“通用提升定理”的Lie 2-群:一个同构的分次李代数的乘法polyvector字段的Lie 2-群一方面和相应的Lie 2-代数的polydifferentials的另一方面。

英文摘要:

We prove a 2-categorical analogue of a classical result of Drinfeld: there is a one-to-one correspondence between connected, simply-connected Poisson Lie 2-groups and Lie 2-bialgebras. In fact, we also prove that there is a one-to-one correspondence between connected, simply connected quasi-Poisson 2-groups and quasi-Lie 2-bialgebras. Our approach relies on a "universal lifting theorem" for Lie 2-groups: an isomorphism between the graded Lie algebras of multiplicative polyvector fields on the Lie 2-group on one hand and of polydifferentials on the corresponding Lie 2-algebra on the other hand.

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