## Betti numbers?

Who?
Marta Panizzut (TU Berlin)
When?
2019/06/07, 13:00
Before the BMS Friday Colloquium by Prof. Kristin Shaw
Where?
Urania Berlin, at the BMS Loft (3rd floor)
Betti numbers are nonnegative integers that helps classifying topological spaces. Loosely speaking, the $n$th Betti number counts the number of $n$-dimensional holes. They are defined as ranks of homology groups. In this talk we will introduce them by looking at simplicial homology and focusing on many examples.