栈的函子重构定理
Functorial reconstruction theorems for stacks
摘要:
我们研究的情况下,人们可以重建一个堆栈从其相关函子的同构类。这是可能的,令人惊讶的是,经常:我们表明,许多标准的例子,模栈是由他们的函子。我们的方法似乎表现出新的anabelian类型的现象,在编码群胚中的自同构数据的方案的类别中的结构的形式。
英文摘要:
We study the circumstances under which one can reconstruct a stack from its associated functor of isomorphism classes. This is possible surprisingly often: we show that many of the standard examples of moduli stacks are determined by their functors. Our methods seem to exhibit new anabelian-type phenomena, in the form of structures in the category of schemes that encode automorphism data in groupoids.
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