Olivetti Club

Benjamin Thomopson
A result by Hatcher and Thurston

Tuesday, December 15, 2020 - 4:30pm

We look at a result by Hatcher and Thurston: calculating the mapping class group of a closed orientable surface. While the fundamental group or the singular cohomology of a closed orientable surface are relatively easy to compute, the same cannot be said of the mapping class group! We take a look at their ingenious solution after introducing the invariant.

Refreshments will be served in the lounge at 4:00 PM.