London Algebra Colloquium abstract

Multiplicity in difference geometry

Konstantin Ardakov (Queen Mary), 6th December 2012

Abstract

Classical commutative rigid analytic spaces were introduced by John Tate in the 1960s with number-theoretic applications in mind. They are defined in terms of a particular p-adic completion of the polynomial algebra, called the Tate algebra. When we replace the polynomial algebra by the Weyl algebra and perform the same construction, we obtain the so-called Tate–Weyl algebra. Using these rings, we build a sheaf D^ of non-commutative rings on any smooth rigid analytic space X that can be viewed as a quantisation of the cotangent bundle of X. If time permits, I’ll explain the connection between D^-modules and the p-adic representation theory of compact p-adic Lie groups.

This is joint work with Simon Wadsley.