Date:
Mon, 27/04/2020 - 15:00 - 16:00
Zoom meeting ID: 919-9946-8404
Password: see email announcement or contact the seminar organisers:
We characterise when the generator of the second homotopy group of a knot trace can be represented by a locally flat embedded 2-sphere with abelian fundamental group of the complement, in terms of classical and computable invariants of the corresponding knot. This is a joint project with Feller, Miller, Nagel, Orson, and Powell.