Quantum Topology / Hopf Algebra Seminar
Louis H Kauffman
UIC
Vortex Re-connection, knot cobordism and virtual knot cobordism
Abstract: Knotted vortices in fluids tend to quickly decay by re-connection to unlinked circles. This talk will discuss how this phenomenon is related to knot cobordism and we will show that the number of re-connections is bounded below by the signature of the knot.
We will continue this discussion from last time and we will discuss, for virtual knots, the concordance
invariance of the affine index polynomial for knots and for links.
Tuesday April 3, 2018 at 3:00 PM in SEO 612