[K-OS] Knot Online Seminar

[K-OS] is an online research seminar which focuses on knot theory and low-dimensional topology. Talks will be delivered by authors of recent arXiv articles that made a breakthrough in our field. It happens the 3rd Thursday of months from 16:15 to 17:15 (CET/CEST Berlin, Brussels, Madrid, Paris, Rome, Vienna, Warsaw, Zurich) on Zoom.

It is organized by Alexandra Kjuchukova, Lukas Lewark, and Emmanuel Wagner. It benefits from logistical support from the CNRS and the university of Paris.

If there is a recent arXiv preprint which you would like to see featured on the seminar, please email the organizers with your suggestion.

Forthcoming Talks

18/04/2024

• Speaker: Sam Hughes (University of Oxford)
• Title: Complements of smooth surfaces in simply connected 4-manifolds
• Abstract: In this talk based on joint work with Daniel Ruberman I will discuss our recent solution to one of Kronheimer's problems in the 1997 Kirby problem list. More specifically, for each integer n we construct a simply connected 4-manifold admitting a smoothly embedded surface of self intersection number n such that the complement of the surface has non-trivial fundamental group.