Darstellungstheorietage 2025

GRK 2240:
Algebro-geometric Methods in Algebra, Arithmetic and Topology

University of Düsseldorf, 13-14 November 2025


Speakers & Talks | Schedule | Participants | Location & Transportation | Registration & Accommodation | Organisers & Contact | Previous Editions & Funding Acknowledgement

Speakers & Talks



Schedule

The event starts on Thursday, 13 November, at 2pm and ends on Friday, 14 November, around 1.15pm; see below for a detailed schedule.
Traditionally, a joint dinner takes place on Thursday evening. According to the demand, we will reserve tables in Cafe Weise an der Uni, a pub style restaurant at the northern end of the campus and about 20 min walking distance from the Mathematical Institute. They offer a range of drinks and foods, including vegetarian options. Vegan options exist but need to be coordinated more carefully.

The tentative progamme is as follows. Information about rooms and lecture halls will be added in due time.

Day 1 - Thursday 13 Nov 2025

13:00 - 14.05   Registration, coffee/tea
14:10 - 14.15   Welcome and practical matters
14:15 - 15:05   R. Abdellatif: An introduction to p-modular representations of p-adic groups
15:10 - 15:40   Coffee/tea break
15:40 - 16:20   R. Abdellatif: p-modular Iwahori-Hecke algebras and their simple modules for the p-adic metapectic SL(2)
16:30 - 17:00   E. Barinaga: Chow groups of Deligne-Lusztig varieties
17:10 - 18:00   C. Eaton: A survey of progress on Donovan's conjecture

19:30   Drinks/Joint Dinner (optional) at Cafe Weise an der Uni

Day 2 - Friday 14 Nov 2025

08:30 - 08.55   Coffee/tea
09:00 - 09.50   E. Giannelli: McKay bijections and character degrees
10.00 - 10.30   P. Turek: Decomposition columns labelled by d-balanced partitions
10:30 - 11:00   Coffee/tea break
11:00 - 11:30   T. Scongnamiglio: Multiplicities for finite reductive groups and character varieties for Riemann surfaces
11:35 - 12:05   Z. Yin: Mod p local Langlands correspondence
12:05 - 12:25   Coffee/tea
12:30 - 13:10   B. Späth: Towards the Alperin-McKay Conjecture

Participants

Location & Transportation

The meeting is to take place at the

Mathematical Institute
Heinrich Heine University
Universitätsstr. 1
40225 Düsseldorf

You may find it helpful to refer to the campus map or the webpage of the Mathematical Institute for further information.

The precise venue will be announced in due time.

The campus is reachable by tram or bus:

You can find additional connections here.

Registration & Accommodation

In order to attend, please send an email to the organisers providing your name and affiliation (e.g. the name of your university). Please confirm that you are happy for us to include the information submitted (name, affiliation) to create a public list of participants on this webpage. Finally, please indicate whether you are likely to attend the dinner on Thursday evening and, if so, whether you will require vegan food options.

For the convenience of participants we blocked ca. 15 rooms at the following hotel (close to the campus): HK-Hotel Düsseldorf City
You can book one of these rooms by indicating to the hotel that you are taking part in the Darstellungstheorietage. You are repsonsible for your booking; a usual cancellation policy applies (reservations can be cancelled without surcharge up to seven days before the intended arrival date).

Organisers & Contact

The meeting is organised by Clotilde Gauthier and Benjamin Klopsch.

Please use the dedicated email address to contact us about matters concerning the meeting.

Previous Editions & Funding Acknowledgements

The previous two editions of the Darstellungstheorietage took place in Stuttgart (2024+ε) and Wuppertal (2023+ε).

We kindly acknowledge partial funding for the event by the Mathematical Institute and by the DFG-funded RTG 2240.