$\vec{w}h\alpha\mathfrak{t}\;\; i\mathbb{S}\ldots$

a $\operatorname{CAT}(0)$ space?

Sebastian Meinert (FU Berlin)
2014/11/14, 13:30
Before the BMS Kovalevskaya Colloquium by Prof. Stephanie B. Alexander
Urania Berlin, at the BMS Loft (3rd floor)
About what?

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.