Logic Seminar
Rachel Skipper
Ohio State
The Cantor-Bendixson rank of the Grigorchuk group
Abstract: The space of subgroups of a group has a natural Polish topology and understanding this space can help to understand the group.
In this talk, we will consider the Cantor-Bendixson derivative and rank for the space of subgroups of the Grigorchuk group, using it to stratify the subgroups of this group.
Tuesday November 24, 2020 at 2:00 PM in Zoom