### Obstructions to nice branch sets for branched coverings

- Series
- Geometry Topology Student Seminar
- Time
- Wednesday, October 9, 2019 - 14:00 for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Sudipta Kolay – Georgia Tech

It is a classical theorem of Alexander that every closed oriented manifold is a piecewise linear branched covering of the sphere. In this talk, we will discuss some obstructions to realizing a manifold as a branched covering of the sphere if we require additional properties (like being a submanifold) on the branch set.