Introduction to Branched Covers

Series
Geometry Topology Student Seminar
Time
Wednesday, October 26, 2011 - 2:00pm for 1 hour (actually 50 minutes)
Location
Skiles 005
Speaker
Meredith Casey – Georgia Tech
Organizer
Meredith Casey
The main purpose of this talk is to better understand how to use branched covers to construct 3-manifolds. We will start with branched covers of 2-manifolds, carefully working through examples and learning the technology. Using these methods in combination with open book decompositions we will show how to construct 3-manifolds by branching over link and knots in S^{3}. Particular emphasis will be placed on using the map to get a "coloring" of the branched locus and how this combinatorial data is useful both for explicit constructions and for the general theory.