Return to Colloquia & Seminar listing

### 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.