Alice Medvedev : QACFA

Posted by , part of the Logic Seminar.

At

Aug. 25, 2009, 4 p.m.

In

SEO 612

Abstract

Instead of thinking of a model of ACFA as a field with one automophism $\sigma$, one can think of it as an action of $(\mathbb{Z}, +)$ on the field, where $n$ acts by $\sigma^n$. I will say a few words about what happens when $\mathbb{Z}$ is replaced with $\mathbb{Q}$.

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