Bonn Topology Group

General Information - Members - Activities - Topology Seminar

This page displays the schedule for the Topology Seminar at the Mathematical Institute.

The seminar takes place on Tuesdays from 5:00 to 6:00 pm, via Zoom. The Meeting-ID is 937 6469 9688. If you want to participate, but are not registered in the Bonn topology mailing list, you can receive the credentials by contacting the organiser.
Tea and cookies will be served at home, if you are lucky, but the Zoom-session should be available at least 30 minutes in advance to chat.
The program of previous semesters is here. If you are interested in giving a talk or want to suggest a speaker, please contact the organiser.


  • October 27th, 2020
    Achim Krause (WWU Münster): The Picard group in equivariant homotopy theory via stable module categories
    Abstract, Notes
  • November 3rd, 2020
    Jean Raimbault (Université Toulouse III, France): L^2-torsion on the character variety
  • November 10th, 2020
    Jim Davis (Indiana University, Bloomington, USA): Hyperfield Grassmannians
  • November 17th, 2020
    Georg Tamme (Universität Regensburg): Purity in chromatically localized algebraic K-theory
  • November 24th, 2020
    Geoffroy Horel (Université Paris XIII, France): Galois Symmetries of knot spaces
  • December 1st, 2020
    Andrew Senger (MIT, Boston, USA): Boundaries of highly connected, almost closed manifolds
  • December 8th, 2020
    Jeremy Hahn (MIT, Boston, USA): More highly connected manifolds
  • December 15th, 2020
    Allen Yuan (Columbia University, New York City, USA): Ambidexterity phenomena at height 1
  • December 22nd, 2020
  • January 12th, 2021
    Sherry Gong (Standford University, Palo Alto, USA): Invariants of knots and links
  • January 19th, 2021
    Daniel Berwick-Evans (University of Illinois at Urbana-Champaign, USA): How do field theories detect the torsion in topological modular forms?
  • January 26th, 2021
    Ben Knudsen (Northeastern University, Boston, USA): tba
  • February 2nd, 2021
    Asaf Horev (Stockholms Universitet, Sweden): tba
  • February 9th, 2021
    Scott Balchin (MPIM): tba