An Isaac Newton Institute Workshop

AN INTRODUCTION TO RECENT APPLICATIONS OF MODEL THEORY

$\omega$-stability of covers of varieties

Authors: Misha Gavrilovich (Oxford University), supervisor Boris Zilber (Oxford University)

Abstract

We ask whether the notion of a homotopy class of a path on a complex algebraic variety admits a purely algebraic characterisation, and relate a conjecture of Shafarevich in complex analytic geometry via a model-theoretic approach of logically perfect structures developed by Zilber.

We show how this question can be formulated, and arises from, as a question of $L_{\omega_1\omega}$-categoricity naturally arising in the approach of analytic Zariski structures.

In the presented paper we answer the question partially by proving $\omega$-homogeneity and $\omega$-stability \emph{over models} of a related $L_{\omega_1\omega}$-class.