Bundles on non-proper schemes: representability
- Author(s): Baranovsky, Vladimir
- et al.
Published Web Locationhttps://doi.org/10.1007/s00029-010-0021-3
Let X be a proper scheme over a field k which satisfies Serre’s condition S 2 and G a reductive group over k. We prove that the functor of principal G-bundles, defined away from a non-fixed closed subset in X of codimension at least 3, is an algebraic stack in the sense of Artin.