Logic Seminar
Bruno Poizat
Université Claude-Bernard Lyon 1
Parameters in AC fields
Abstract: We study the connections between the automorphisms of an AC field K and the automorphisms of a structure S definable in it. Our methods are model theoretic and use a minimum of algebra. As an application, we show that the automorphisms of a simple algebraic group G over K acts on a copy L of K, with kernel the geometric automorphisms of G.
Tuesday November 5, 2024 at 2:00 PM in 636 SEO