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Smooth concordance bounds on wrapping numbers
Geometry/Topology| Speaker: | Marco Golla, Université de Nantes |
| Related Webpage: | http://www.math.sciences.univ-nantes.fr/~golla/ |
| Location: | 2112 MSB |
| Start time: | Tue, Oct 30 2018, 1:00PM |
Suppose that K is a knot in the solid torus T. A natural invariant of K is the wrapping number, i.e. the minimal number intersections with a meridional disc of T, up to isotopy. I will talk about an analogue 4-dimensional question for knots up to concordance (i.e., essentially, up to an annulus in T x [0,1]). The main tool will come from (twisted) correction terms in Heegaard Floer homology. This is joint work with Daniele Celoria.