# Activities

## Regular Events

• Research Seminar: Fridays during term time, 10:15-11:30, in the anatomic lecture hall @ FRIAS. Please have a look at the calendar for details, including titles and abstracts.
• Regular FRIAS Lunches: Monday, Tuesday, Thursday during term time.

## Irregular Events

### 2018 July

• Summer School: Modular representation theory — in cooperation with GK1821.
Organizer: Wolfgang Soergel
Speakers: Simon Riche (University of Clermont Auvergne), Shotaro Makisumi (Columbia University)

### 2018 – March

• Mathematics Day — in cooperation with the Frias groups in Mathematical Finance. 13 March 2018. Link for details and schedule

### 2018 – February

• German Probability and Statistics Days — organised by colleagues from the statistics group. Talk by Wendelin Werner on Tuesday. Feb27 – Mar02. Link
• Winter School on $\mathbb{A}^1$-Homotopy Theory — in cooperation with GK1821.
The school covers The basic constructions of the unstable and stable $\mathbb{A}^1$-homotopy categories will be presented, along with the relevant category-theoretic methods, such as model structures, left Bousfield localization and symmetric spectra. These constructions will be applied to more recent developments, such as the questions of $\mathbb{A}^1$-contractibility and the minus-part of the stable $\mathbb{A}^1$-homotopy category – Link

### 2018 – January

• Conical spherical metrics — a lecture series of Bin Xu, organised by Andriy Haydy in cooperation with GK1821. January 30 – February 2, 2018  – Link
• Joint seminar Dijon-Freiburg-Strasbourg — a workshop organised by Giuseppe Ancona, Annette Huber, Frédéric Déglise. Will take place on January 12th, 2018 at Freiburg. There will be a joint lunch and also dinner the day before. Outside participants are very welcome!

### 2017 – November

• Joint Seminar Basel-Freiburg-Saarbrücken-Strasbourg — will take place on Novembver 30, 2017 at Strasbourg. Speakers are Jeremy Daniel, Christian Urech, Michael Hoff and Matthias Wendt. Outside participants are very welcome! – Link

### 2017 – October

• Summer School: Degeneration of Calabi-Yau varieties and arithmetic — in cooperation with GK1821.
Speakers: Charles Doran (University of Alberta), Matt Kerr (University of Washington), Radu Laza (Stony Brook University), Johannes Walcher (University of Heidelberg), Don Zagier (MPIM Bonn).
Topics: Hodge-theoretic and arithmetic aspects of families of Calabi-Yau varieties (mainly in dimensions 2 and 3), periods, degenerations at the boundary, compactifications of moduli spaces, and relations to physics. – Link

### 2017 – September

• Informal talks by Mihnea Popa on “Hodge ideals”
• Informal talks by Chenyang Xu (许晨阳) on “Volumes and stability of singularities”

### 2017 – June

• Motives Day Dijon-Freiburg-Strasbourg — a workshop organised by Giuseppe Ancona, Annette Huber, Frédéric Déglise. Will take place on June 1st, 2017 at Strasbourg. There will be a joint lunch and also dinner the day before. Outside participants are very welcome! – Link