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Number Theory Seminar:  The average 6-torsion of class groups | Peter Koymans (Utrecht)

Friday, March 13, 2026 | 1:00 PM - 2:00 PM CT
Annenberg Hall, G31, 2120 Campus Drive, Evanston, IL 60208 map it

Cohen and Lenstra made influential conjectures regarding the average value of the n-torsion of class groups of quadratic fields. So far these conjectures have been proven only for a very select number of values of n, namely n = 2^k or n = 3. In this talk, we sketch how to obtain asymptotics for the average 6-torsion. This is joint work with Robert Lemke Oliver, Efthymios Sofos and Frank Thorne.

Audience

  • Faculty/Staff
  • Student
  • Post Docs/Docs
  • Graduate Students

Contact

Alex Smith
Email

Interest

  • Academic (general)

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