A maximal subgroup of Sym(N) | Department of Mathematics

A maximal subgroup of Sym(N)

Event Information
Event Location: 
GAB 461
Event Date: 
Friday, September 26, 2014 - 1:00pm

Abstract: I will prove the folklore result that the automorphism group of an ultrafilter is a maximal subgroup of Sym(N), the permutation group of the integers.