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arXiv 2006.14271math.DG
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奇异叶丛的整群胚

The Holonomy Groupoids of Singularly Foliated Bundles

Lachlan Ewen MacDonald

摘要:

我们定义了一个概念的连接在一个纤维丛,是兼容的一个奇异的叶理的基础。配备有这种联系的纤维丛是丰富的供应,自然产生的任何李群-等变丛,并同时推广规则叶状丛的意义上的Kamber-Tondeur和奇异叶状。我们定义了层次的拓扑holonomy groupoid相关联的这样的束,这是从平行运输的喷气机/germinal守恒定律。我们表明,以这种方式关联到平凡的奇异叶状丛的群胚是Androulidakis-Skandalis holonomy群胚的子群,这与Androulidakis-Skandalis holonomy群胚在正则情况下相一致。最后,我们证明了我们所有的结构在适当的态射下的函性。

英文摘要:

We define a notion of connection in a fibre bundle that is compatible with a singular foliation of the base. Fibre bundles equipped with such connections are in plentiful supply, arising naturally for any Lie groupoid-equivariant bundle, and simultaneously generalising regularly foliated bundles in the sense of Kamber-Tondeur and singular foliations. We define hierarchies of diffeological holonomy groupoids associated to such bundles, which arise from the parallel transport of jet/germinal conservation laws. We show that the groupoids associated in this manner to trivial singularly foliated bundles are quotients of Androulidakis-Skandalis holonomy groupoids, which coincide with Androulidakis-Skandalis holonomy groupoids in the regular case. Finally we prove functoriality of all our constructions under appropriate morphisms.

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