|Intervenant :||Kęstutis Česnavičius|
|Heure :||14h00 - 15h00|
A conjecture of Nisnevich predicts that for a smooth variety X over a field, a smooth divisor D
in X, and a totally isotropic reductive X-group scheme G, every generically trivial G-torsor on
X \ D trivializes Zariski locally on X. I will discuss this conjecture and related questions about
torsors under reductive groups over regular rings.