Metric groups attached to biextensions

الأصل · EN

Let G be a connnected, unipotent, perfect group scheme over an algebraically closed field of characteristic p > 0. V. Drinfeld has defined a certain metric group associated to biextensions of G × G by the discrete group Qₚ/Zₚ. We prove a certain conjecture of Drinfeld regarding the class of this metric group in the Witt group.