#### Mimar Sinan Fine Arts University Mathematics Department Seminars

On Stabilization of $E_k$ Envelopes
Tuba Çakmak
Atatürk Üniversitesi, Turkey
Özet : E_k envelopes were constructed in order to find definable nilpotent subgroups which contain the nilpotent subgroup, by considering the fact that a double centralizer of a subgroup contains this subgroup. A natural question about E_k definable envelopes is stabilization problem. It is about the decreasing sequence of E_k envelopes stop after a specific point. In this talk after giving some group classes have affirmative answer for stabilization problem, I will give the details of an example which shows that E_k envelopes do not stabilize in general.
 Tarih : 08.12.2016 Saat : 15:00 Yer : Matematik Bölümü Dil : English