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Mathematics without Borders: The Centennial of the International Mathematical Union

September 27-28 2021, Palais Universitaire, Strasbourg

The Centennial Conference

We celebrate the Centennial of the International Mathematical Union in Strasbourg, founded in 1920 at the ICM in the same location. The opening session will be held under the High Patronage of Mr. Emmanuel Macron, President of the French Republic.


  • Annalisa Buffa
  • Jean-Luc Dorier
  • Hélène Esnault
  • Étienne Ghys
  • Subhash Khot
  • Stéphane Mallat
  • Hiraku Nakajima
  • Laure Saint-Raymond
  • Norbert Schappacher
  • Stanislav Smirnov
  • Gang Tian
  • Ulrike Tillmann
  • Marcelo Viana

The International Mathematical Union (IMU)

The IMU is an international scientific organization, whose aim is to support and promote mathematics and mathematicians worldwide. It is a non-governmental and not-for-profit organization, representing approximately 90 member countries, and is a member of the International Science Council (ISC).

The IMU oversees and convenes the International Congress of Mathematicians (ICM) every four years. The inaugural ICM was held in Zurich in 1897. At the ICM, the IMU presents some of the most prestigious awards in mathematics – the Fields Medal, the Nevanlinna Prize/Abacus Medal, the Gauss Prize, the Chern Medal, and the Leelavati Award.

The centennial in Strasbourg

The IMU was officially established on 20 September 1920 in Strasbourg, just prior to the ICM in Strasbourg.

ICM 1920 poster. Picture taken from the roof of the Palais Universitaire.

ICM 1920 poster. Picture taken from the roof of the Palais Universitaire.

Recent photo of the Palais Universitaire.

Recent photo of the Palais Universitaire.

The conference will take place in the same building where the ICM 1920 was held in Strasbourg.


Scientific committee Organizing committee
Carlos Kenig Helge Holden
Nalini Anantharaman Philippe Helluy
Andrei Okounkov Nalini Joshi
Anna Wienhard Bertrand Rémy
Günter M. Ziegler

The Centennial Conference was originally scheduled for September 2020, 100 years after the founding of the IMU. It was rescheduled to September 2021 due to the pandemic.

The entire conference will be webcast live.



    Annalisa Buffa


    Jean-Luc Dorier

    Université de Genève

    Hélène Esnault

    Freie Universität Berlin

    Étienne Ghys


    Subhash Khot

    University of Mumbai and University of Princeton

    Stéphane Mallat

    Collège de France

    Hiraku Nakajima

    University of Tokyo

    Laure Saint-Raymond

    ENS Lyon

    Norbert Schappacher

    Université de Strasbourg

    Stanislav Smirnov

    Université de Genève

    Gang Tian

    University of Beijing and University of Princeton

    Ulrike Tillmann

    University of Oxford

    Marcelo Viana


Program (to be confirmed)

Monday morning

Monday afternoon

Time Slot Abstract
12h45 Lunch -
14h00 Annalisa Buffa
14h25 Hélène Esnault
14h50 Subhash Khot
15h15 Coffee-break -
15h30 Jean-Luc Dorier Capacity and networking project (CANP): a key issue of the International commission on mathematical instruction (ICMI) at the turn of the 21st century
15h55 Étienne Ghys
16h20 Stéphane Mallat
16h45 Coffee-break -
17h00 Interview/discussion with IMU Presidents -
17h40 Hiraku Nakajima

Tuesday morning

Time Slot Abstract
10h00 Laure Saint-Raymond
10h25 Stanislav Smirnov
10h50 Gang Tian
11h15 Coffee-break -
11h45 Cultural event -
12h10 Ulrike Tillmann
12h35 Marcelo Viana
13h00 Buffet lunch -