Extensions of Lie brackets
Extensions of Lie brackets
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DOI:
10.1016/j.geomphys.2009.10.006
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发表时间:
2008-10
影响因子:
1.5
通讯作者:
O. Brahic
中科院分区:
文献类型:
--
作者:
O. Brahic
We provide a framework for extensions of Lie algebroids, including non-abelian extensions and Lie algebroids over different bases. Our approach involves Ehresmann connections, which allows straight generalizations of classical constructions. We exhibit a filtration in cohomology and explain the associated spectral sequence. We also give a description of the groupoid integrating an extension in case a complete connection exists. The integrability is also studied.