Moshe Kamensky : Definable groups of automorphisms

Posted by David E. Marker , part of the Logic Seminar.

At

Dec. 4, 2007, 4 p.m.

In

SEO 427

Abstract

The Galois theory of linear differential equations can be usefully interpreted as an instance of the general model theoretic construction of the automorphisms group of one definable set over another. I will present an elementary version of this construction, which is useful for interpreting the Galois group of a linear difference equation.