Upcoming Talks

The seminar will meet at 4:30 on Monday in 2-131 unless otherwise noted.

Click here to add this seminar to your google calendar. If you use a different calendar program, the ics file for this seminar is here:
http://math.mit.edu/topology/topology_seminar.ics

• • Oct 192026

  Oliver Wang (University of Virginia)

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  Group actions on exotic spheres

  It is unknown whether or not every exotic sphere has a smooth, nontrivial circle action. It is also unknown whether or not every exotic sphere has a smooth, nontrivial $\mathbb{Z}/p$-action. In this talk, I will explain how to use homotopy theory to detect and obstruct $\mathbb{Z}/p$-actions on exotic spheres. This is joint work with Nick Kuhn and J.D. Quigley.

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• • Oct 262026

  Samuel Muñoz Echániz (MIT)

• • Nov 022026

  Jonathan Sejr Pedersen (Institute for Advanced Study)

• • Nov 092026

  Connor Malin (Max Planck Institute for Mathematics)

• • Nov 162026

  David Lee (Northwestern University)

• • Nov 232026

  Andy Senger (University of Maryland)

• • Nov 302026

  Sanath Devalapurkar (Institute for Advanced Study)

• • Dec 072026

  Peter Haine (University of Southern California)

Email Jeremy Hahn for inquiries about the seminar.

The mailing list for this seminar is the MIT topology google group.
Email Mike Hopkins if you want to join the list.