- Series
- Geometry Topology Seminar Pre-talk
- Time
- Monday, April 15, 2019 - 12:45pm for 1 hour (actually 50 minutes)
- Location
- Skiles 006
- Speaker
- Patrick Orson – Boston College – patrick.orson@bc.edu – https://www2.bc.edu/patrick-orson/
- Organizer
- JungHwan Park
I will give a brief survey of concordance in high-dimensional knot theory and how slice results have classically been obtained in this setting with the aid of surgery theory. Time permitting, I will then discuss an example of how some non-abelian slice obstructions come into the picture for 1-knots, as intuition for the seminar talk about L^2 invariants.