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arXiv 1506.07155math.CTmath.AT
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高等伽罗瓦论

Higher Galois theory

Marc Hoyois

摘要:

我们将拓扑伽罗瓦论推广到更高的拓扑。我们证明了局部(n-1)-连通n-拓扑中的局部常数层等价于其基本pro-n-广群的表示,并且后者可以用伽罗瓦挠子来描述.我们还表明,有限局部常数层在一个任意的无限拓扑是等价的有限表示的基本pro-infinity广群。最后,我们将基本的pro-infinity-groupoid的1-topoi的建设的阿廷和马祖尔,并在情况下的étale topos的一个计划,其细化的弗里德兰德。

英文摘要:

We generalize toposic Galois theory to higher topoi. We show that locally constant sheaves in a locally (n-1)-connected n-topos are equivalent to representations of its fundamental pro-n-groupoid, and that the latter can be described in terms of Galois torsors. We also show that finite locally constant sheaves in an arbitrary infinity-topos are equivalent to finite representations of its fundamental pro-infinity-groupoid. Finally, we relate the fundamental pro-infinity-groupoid of 1-topoi to the construction of Artin and Mazur and, in the case of the étale topos of a scheme, to its refinement by Friedlander.

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