Speaker: Jason Block
City University of New York, Graduate Center
Will give a Logic Seminar entitled:
Elementarity of Subgroups and Complexity of Theories for Profinite Groups
Abstract: Although profinite groups (of countable index) may be of size continuum, they can all be presented as the set of paths through a countable tree. Using these tree presentations, we examine the possible complexities of the first order theory of such profinite groups and examine to what degree certain well defined countable subgroups are elementary subgroups.
Date: 12-10-2024
Time: 2:00 pm
Location: 125 Hayes-Healy Bldg