Tuesday, April 17, 2018, 17:15
Wrocław University of Technology, 215 D-1
Speaker: Piotr Borodulin-Nadzieja (University of Wroclaw)
Title: Tunnels through topological spaces
I will show a ZFC example of a compact space (without
isolated points) through which one cannot drill a tunnel. I will discuss
when and when not $\omega^*$ has a tunnel.