Spring School "The Dynkin Classification"
The Algebra Group at Ruhr University introduces the omnipresent Dynkin Classification from five different angles in a spring school at Ruhr University Bochum March 31-April 4, 2025.
No preliminary knowledge of the topics is expected, all interested Master and PhD students and as well PostDocs are invited to actively participate in the lectures and the exercise sessions.
Schedule
Lectures: Lecture hall HID (Monday to Wednesday, between buildings IC and ID) and HIC (Thursday to Friday, between buildings IB and IC).
Exercise sessions and coffee breaks: Room 471/459 in building ID on level 04 (not 4 or E4!).
Fresh coffee, tea and pastry will be provided every day at 8:30 a.m. and 12:30 p.m.
| Time | Monday (HID) | Tuesday (HID) | Wednesday (HID) | Thursday (HIC) | Friday (HIC) |
|---|---|---|---|---|---|
| Lecturer | Christian Stump | Gerhard Röhrle | Karin Baur | Markus Reineke | Alexander Ivanov |
| 08:30 - 09:00 | Registration | ||||
| 09:00 - 10:00 | Lecture 1 | Lecture 1 | Lecture 1 | Lecture 1 | Lecture 1 |
| 10:15 - 11:15 | Lecture 2 | Lecture 2 | Lecture 2 | Lecture 2 | Lecture 2 |
| 11:30 - 12:30 | Exercise session 1 | Exercise session 1 | Exercise session 1 | Exercise session 1 | Exercise session 1 |
| 12:30 - 13:30 | Lunch break | Lunch break | Lunch break | Lunch break | Lunch break |
| 13:30 - 14:30 | Lecture 3 | Lecture 3 | Lecture 3 | Lecture 3 | Lecture 3 |
| 14:30 - 16:00 | Exercise session 2 | Exercise session 2 | Exercise session 2 | Exercise session 2 | Exercise session 2 |
| 16:00 - 17:00 | Exercise discussion | Exercise discussion | Exercise discussion | Exercise discussion | Exercise discussion |
| 18:00 - 22:00 | Dinner at Q-West |
Topics
| Day | Lecturer | Topic | Exercises | Additional Material |
|---|---|---|---|---|
| Mon, Mar 31 | Christian Stump | Coxeter groups and root systems | Exercise sheet | Reference sheet: Classification |
| Tue, Apr 1 | Gerhard Röhrle | Lie groups and Lie algebras | ||
| Wed, Apr 2 | Karin Baur | Cluster algebras | ||
| Thu, Apr 3 | Markus Reineke | Quiver representation theory | ||
| Fri, Apr 4 | Alexander Ivanov | Simple singularities |
Workshop Dinner
The spring school dinner will take place in Q-West on the Ruhr University's campus on April 1 from 18:00 (6 pm) until 22:00 (10 pm). You can find the menu here.
Food Options
You have the following food options on campus:
- Q-West (lunch and dinner)
- Mensa (lunch)
- Rote Bete (vegan only)
- Beckmanns Hof in the Botanical Garden next to the campus
- Unicenter next to the station "Ruhr-Universität" with grocery stores and other takeaway restaurants
Off-campus you can make your way to the "Bermuda3Eck", a district filled with bars and restaurants. It is about a 5 minute walk from Bochum Hbf (main station).
Registration and accommodation
Registration for the spring school is closed.
If you require accommodation in Bochum, we recommend the following options:
Local Organizers
The Algebra Group at Ruhr University Bochum. Please contact Peter Tissen if you need support with finding and/or booking a hotel.
Funding
The spring school is funded by the Department of Mathematics and by the DFG priority program 2458 Combinatorial Synergies.
Directions and public transport
Since most tracks at Bochum main station will be temporarily closed during the time the spring school takes place, the best way to reach Bochum is via the S1 (between Solingen and Dortmund) or taking any other means to get to Herne Bf as an alternative. Once in Bochum or Herne, you may take the U35 to Hustadt/Querenburg and get off at the station Ruhr-Universität. From there, navigate over the university bridge, pass the university library on the left and follow the first path to the left until you reach the building ID at the very edge of the campus.
