- Series
- Geometry Topology Student Seminar
- Time
- Wednesday, April 10, 2019 - 2:00pm for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Hongyi Zhou – Georgia Institute of Technology – hzhou@gatech.edu
- Organizer
- Surena Hozoori
CassonĀ invariant is defined for the class of oriented integral homology 3-spheres. It satisfies certain properties, and reduce to Rohlin invariant after mod 2. We will defineĀ CassonĀ invariant as half of the algebraic intersection number of irreducible representation spaces (space consists of representations of fundamental group to SU(2)), and then prove this definition satisfies the expected properties.