Algebraic and Arithmetic Geometry @ Bielefeld
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The Bielefeld Algebraic and Arithmetic Geometry Oberseminar, Winter Semester 2024-25

This semester we study Borel's calculation of the rational K-groups of rings of integers of number fields.
A detailed description of the last six talks can be found here. For more information, please contact Lennart Gehrmann or Fabian Hebestreit.

Talks

Wednesday

16 October, 2024

14:00 V2-210 Manuel Hoff
Infinity categories and K-theory
16:00 V2-210 Carl Mazzanti
The group completion theorem

Wednesday

30 October, 2024

14:00 V2-210 Vikram Nadig
Rational K-groups and homology

Thursday

31 October, 2024

14:00 V2-210 Julius Frank
Localisation and the K-groups of finite fields

Wednesday

4 December, 2024

14:00 V2-210 Aaron Schäfers
Locally symmetric spaces
16:00 V2-210 Simon Paege
The main theorem and injectivity

Wednesday

18 December, 2024

14:00 V2-210 TBA
Duality groups and Borel–Serre compactification
16:00 V2-210 TBA
Finite generation of K-groups

Wednesday

January 22, 2025

14:00 V2-210 TBA
Matsushima’s theorem and surjectivity
16:00 V2-210 TBA
Borel’s theorem