Sebastian Meinert (FU Berlin)

2014/11/14, 13:30

Before the BMS Kovalevskaya Colloquium by Prof. Stephanie B. Alexander

Before the BMS Kovalevskaya Colloquium by Prof. Stephanie B. Alexander

Urania Berlin, at the BMS Loft (3rd floor)

A $\operatorname{CAT}(0)$ space is a metric space in which geodesic triangles are at most as thick as in Euclidean space. We will make this notion precise and explain some basic features of $\operatorname{CAT}(0)$ spaces, like contractibility.