Algebraic and Arithmetic Geometry @ Bielefeld
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The Bielefeld Algebraic and Arithmetic Geometry Oberseminar, Winter term 2026/2027

This semester we study Radchenko and Wheeler's paper on the algebraicitz of Stark units over real quadratic number fields.

Talks

Wednesday

4 November 2026

14:00 X-E0-209 Quentin Moreau
Statement of the Stark conjecture
16:00 X-E0-209 Aaron Schäfers
Special values of Shintani zeta functions

Wednesday

11 November 2026

14:00 X-E0-209 William Bock
Derivatives of Shintani zeta functions and Kronecker"s limit formula

Wednesday

25 November 2026

14:00 X-E0-209 Sören Sprehe
Faddeev's quantum dilogarithm
16:00 X-E0-209 Matthis Scholz
Relation to Stark-Shintani ray class invariants

Wednesday

9 December 2026

14:00 X-E0-209 Michael Spieß/Thomas Agugliaro
Special values of Faddeev"s quantum dilogarithm

Wednesday

16 December 2026

14:00 X-E0-209 Carl Mazzanti
Finite quantum dilogarithm

Wednesday

13 January 2027

14:00 X-E0-209 Marco Eibrink
Fusion categories I: Construction via endomorpisms of the Leavitt algebra
16:00 X-E0-209 Patrick Bieker
Fusion Categories II: Non-unitary Izumi fusion categories

Wednesday

27 January 2027

14:00 X-E0-209 Lennart Gehrmann/Manuel Hoff
Fusion Categories III: Ocneanu's rigidity theorem and algebraicity