PD Dr. Raphael Zentner

Fakultät für Mathematik
Universität Regensburg

Currently on leave at
Max-Planck-Institut für Mathematik, Bonn

Raphael Zentner
Bored of or tired from doing mathematics?
Watch a sphere inversion for the (n+1)st time in case you couldn't visualise it well enough during the first n times you have watched it:

The following video gives a nice visual and yet mathematically substantial discussion of this topological fact: