Model thoery of Galois actions of torsion Abelian groups

Seminarium: 
Teoria modeli
Osoba referująca: 
Piotr Kowalski (University of Wrocław)
Data spotkania seminaryjnego: 
środa, 13. Listopad 2019 - 16:15
Sala: 
602
Opis: 
This is joint work with Ozlem Beyarslan. Let $A$ be a torsion Abelian group. We give an algebraic criterium for $A$ equivalent to companionability of the theory of fields with actions of $A$ by group automorphisms, and we show that the obtained theory is simple.