# MAA

## Seminar

### Model theory of algebraically closed valued fields

Macpherson, D; Lippel, D (Leeds/McMaster)
Thursday 31 March 2005, 10:00-11.00

Seminar Room 1, Newton Institute

#### Abstract

This tutorial of 5 lectures will be an exposition of a proof of elimination of imaginaries for the theory of algebraically closed valued fields (ACVF), when certain extra sorts from M^eq (coset spaces) are added. The proof will be based on that of [1], though further recent ideas of Hrushovski may be incorporated. The tutorial will begin with a general account of the basic model theory of ACVF and the notion of elimination of imaginaries, and will end with further developments from [2]: in particular, the notion of stable domination.

1. D. Haskell, E. Hrushovski, H.D. Macpherson, Definable sets in algebraically closed valued fields. Part I: elimination of imaginaries', preprint.

2. D. Haskell E. Hrushovski, H.D. Macpherson, Definable sets in algebraically closed valued fields. Part II: stable domination and independence.'