Oberseminar WiSe 25/26

Die Vorträge finden jeweils donnerstags um 16:45 Uhr im Raum WSC-N-U-3.05 (im Mathematikgebäude ) statt.
Der Tee findet ab 16:15 in Raum O-3.46 statt.

Alle Interessenten sind herzlich eingeladen!

The seminar takes place on Thursday, starting at 4:45pm. The duration of each talk is about 60 minutes. Before the talk, at 4:15pm, there is tea in room O-3.46.
Everybody who’s interested is welcome to join.

Directions from the train station.

16.10.2025	Jaya Iyer (Chennai)	Period index questions for hyperelliptic curves
23.10.2025	N.N.	t.b.a.
30.10.2025	N.N.	t.b.a.
06.11.2025	N.N.	t.b.a.
13.11.2025	Yu LUO (Univ. of Wisconsin-Madison)	t.b.a.
20.11.2025	N.N.	t.b.a.
27.11.2025	N.N.	t.b.a.
04.12.2025	N.N.	t.b.a.
11.12.2025	N.N.	t.b.a.
18.12.2025	Christian Maire, (Univ. Marie et Louis Pasteur)	t.b.a.
08.01.2026	N.N.	t.b.a.
15.01.2026	N.N.	t.b.a.
22.01.2026	N.N.	t.b.a.
29.01.2026	N.N.	t.b.a.
05.02.2026	N.N.	t.b.a.

Abstracts

Jaya Iyer: Period index questions for hyperelliptic curves

We will discuss period-index question for Brauer group of fields. In particular we will consider function fields of hyperelliptic curves over number fields. We show that period equals index for 2-torsion Brauer elements under, local triviality conditions.