Past talks:

• Tuesday 1 July 2025
  12:00
  Sala 804 "Ciprian Foias"
     Unstable cohomology of SL_n(Z) and Hopf algebras
     Peter Patzt (University of Oklahoma)
  • Abstract:
    The cohomology of SL_n(Z) has many connections to geometry and number theory and is largely unknown. In this talk, I will give a survey about what is known about it. In particular, I will include newly found unstable classes which come from a Hopf algebra structure. This talk is on joint work with Avner Ash and Jeremy Miller.


• Wednesday 14 August 2024
  12:00
     Uniform homological stability III: the proof of high-connectivity (continued)
     Martin Palmer-Anghel (IMAR)
     Notes


• Wednesday 31 July 2024
  12:00
     Uniform homological stability II: the proof of high-connectivity
     Martin Palmer-Anghel (IMAR)
     Notes   [Pages 1–10 were covered in this talk; pages 11–13 were expanded (to 12 pages) in the next talk above (Part III).]


• Wednesday 24 July 2024
  12:00
     L-functions and families IV
     Adrian Diaconu (University of Minnesota / IMAR)


• Wednesday 10 July 2024
  12:00
     L-functions and families III
     Adrian Diaconu (University of Minnesota / IMAR)


• Wednesday 26 June 2024
  12:00
     Uniform homological stability
     Martin Palmer-Anghel (IMAR)
     Notes


• Wednesday 19 June 2024
  15:00
     L-functions and families II
     Adrian Diaconu (University of Minnesota / IMAR)


• Wednesday 12 June 2024
  12:00
     L-functions and families
     Adrian Diaconu (University of Minnesota / IMAR)