Deformations of Lie Groupoids

Deformations of Lie Groupoids
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李群曲面的变形

DOI:
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发表时间:
2015
影响因子:
1
通讯作者:
I. Struchiner
I. Struchiner
中科院分区:
数学1区
文献类型:
--
作者:
M. Crainic;João Nuno Mestre;I. Struchiner

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利用控制李群拟的上同性研究了李群拟的变形。这个上同调为伴随表示中有值的李群的上同调提供了一个内在模型。我们证明了形变上同的几个基本性质,包括Morita不变性、van Est定理和在适当情况下的消失结果。结合类群的Moser变形论证,得到了若干刚性和范式的结果。
We study deformations of Lie groupoids by means of the cohomology which controls them. This cohomology turns out to provide an intrinsic model for the cohomology of a Lie groupoid with values in its adjoint representation. We prove several fundamental properties of the deformation cohomology including Morita invariance, a van Est theorem, and a vanishing result in the proper case. Combined with Moser’s deformation arguments for groupoids, we obtain several rigidity and normal form results.
DOI: 10.1007/s00209-018-2154-6
发表时间: 2019
影响因子: 0.8
作者:
del Hoyo, Matias;Fernandes, Rui Loja
通讯作者: Fernandes, Rui Loja