Logo der Humboldt-Universität zu Berlin Logo der BBAW Crelle Crelle

From Crelle's Berlin to Modern Moduli

BBAW

Berlin-Brandenburgische Akademie der Wissenschaften

10th September 2026


Speakers

David Rowe (Mainz)Martin Grötschel (Berlin)
Norbert Schappacher (Strasbourg)Jürgen Appell (Würzburg)
Michael Friedman (Bonn)Julia Küßwetter (Würzburg)
Carlo Gasbarri (Strasbourg)François Lê (Lyon)


In 1826, August Leopold Crelle founded in Berlin the journal that still bears his name. Crelle's journal, for a long time the top mathematical journal in the world, has been intimately linked to the University of Berlin and to the Berlin Brandenburg Academy of Sciences and Humanities.
This day will focus on the personality and work of August Leopold Crelle in Berlin in the first half of the 19th century with his dual role in public works in Berlin, on the one hand, and being patron of one of the most important mathematical journals on the other. His musical compositions, a little known aspect of his work, will also feature. The day will also include historical talks tracking down the development of the concept of moduli and parameter space in mathematics, starting from Bernhard Riemann's fundamental paper Theorie der Abelschen Functionen published in Crelle's journal.

Schedule

Thursday, September 10th 2026
08:50 - 09:00Christoph Markschies
Welcoming address by the President of the BBAW
09:00 - 09:45David Rowe
Manifolds and moduli from Riemann to Klein and Poincaré
10:00 - 10:45François Lê
At the crossroads of arithmetic, analysis and geometry: Georges Humbert and his surfaces
10:45 - 11:15Coffee break
11:15 - 12:00Michael Friedman
On nodal-cuspidal curves and irreducibility of moduli spaces in the 1920s

12:00 - 13:30Lunch break

13:30 - 14:15Martin Grötschel
August Leopold Crelle: His life and legacy
14:30 - 15:30Julia Küßwetter & Jürgen Appell
August Leopold Crelle: The musician
15:30 - 16:00Coffee break
16:00 - 16:45Norbert Schappacher
On moduli and modularity in the first half of the 20th century
16:45 - 17:30Carlo Gasbarri
The evolution of the definition of moduli spaces of curves from 1944 to 1969

Location

All lectures take place in the Einstein Saal in the building of the Berlin Brandenburg Academy of Sciences and Humanities.

Address:
Berlin-Brandeburgische Akademie der Wissenschaften
Jägerstraße 22-23
10117 Berlin
Map

Registration

Please register here if you want to participate in this event but not in the conference Two Centuries of Moduli. Registration is mandatory and the deadline is July 1st.


Organizers

Gavril Farkas, Daniel Huybrechts, Rahul Pandharipande


https://mathplus.de http://www.hu-berlin.de/

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