G-torsors over Dedekind schemes

Details G-torsors over Dedekind schemes G-torsors over Dedekind schemes

2010-01-26

arxiv.org/abs/1001.4777v3

Mathematics

Algebraic Geometry

10 pages; fixed references

Scientific paper

We prove the equivalence of three "points of view" of the notion of a
G-torsor when the base scheme is a Dedekind scheme. As an application, we show
that the fibered category of G-torsors on a curve over a field k is
representable by an Artin stack locally of finite presentation over k.

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