13 citations · 34 across the 21 of their papers we have counts for
15 papers · 1 filter
On the generalized Bass--Quillen conjecture in dimension 2
Anastasia Stavrova
Let be a regular ring of dimension . Let be a reductive group over such that its derived group is a split, i.e. a Chevalley--Demazure, semisimple group. We prove…
Non-Stable -Functors of Discrete Valuation Rings Containing a Field
Philippe Gille, Anastasia Stavrova
Let be a field, and let be a simply connected semisimple k-group which is isotropic and contains a strictly proper parabolic -subgroup . Let be a discrete valuati…
On a theorem of Harder
Ivan Panin, Anastasia Stavrova
We prove that for any simply connected isotropic reductive group G over a Dedekind domain D, any Zariski-locally trivial principal G-bundle over D is trivial. The corresponding res…
On the Gille theorem for the relative projective line
Ivan Panin, Anastasia Stavrova
Let be a Noetherian separated scheme. Let be a reductive -group scheme, and let be a principal -bundle over . We prove that if the restriction of…
On the Gille theorem for the relative projective line: I
Ivan Panin, Anastasia Stavrova
We prove a relative version of a theorem on torsors on the projective line due to Philippe Gille. As a consequence we obtain a ``weak homotopy invariance'' result for torsors under…
Torsors of isotropic reductive groups over Laurent polynomials
Anastasia Stavrova
Let k be a field of characteristic 0. Let G be a reductive group over the ring of Laurent polynomials R=k[x_1^{\pm 1},...,x_n^{\pm 1}]. We prove that G has isotropic rank >=1 over…