Saturday, October 18, 2014, 17:15
Wrocław University of Technology, 215 D-1
Speaker: Maciej Malicki (Warsaw School of Economics)
Title: Groups of isometries of Polish ultrametric spaces
We will characterize Polish ultrametric spaces whose isometry groups have a neighborhood basis at the identity consisting of open subgroups with ample generics. We will also define Polish ultrametric W-spaces and give a characterization of W-spaces whose isometry groups have uncountable strong cofinality.