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The IMU is an international non-governmental and non-profit scientific organization. IMU's objectives are:

To promote international cooperation in mathematics.

To support and assist the International Congress of Mathematicians and other international scientific meetings or conferences.

To encourage and support other international mathematical activities considered likely to contribute to the development of mathematical science in any of its aspects, pure, applied, or educational.

poster design by C. Angwin

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

The conference

Mathematics without Borders

The Centennial of the International Mathematical Union
Strasbourg, 27–28 September 2021*

celebrates the centennial of this historic event. The opening of the conference will take place in the same building used for the ICM 1920. Up-to-date information regarding the conference can be found here.

* Please note that the conference has been rescheduled from September 2020 to the new dates given above.



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ICM 2022 in Saint Petersburg, Russia, 6–14 July 2022 
19th IMU General Assembly in Saint Petersburg, Russia, 3–4 July

The International Congress of Mathematicians (ICM) will take place in Saint Petersburg, Russia, between 6–14 July 2022. The registration and grant application for ICM 2022 are now open. Further information can be found here.

The 19th IMU General Assembly will be held shortly before ICM 2022 on 3–4 July.

The IMU grants a number of prestigious prizes and awards every four years at the ICM. The 2022 IMU prizes and awards will be presented at the Opening Ceremony of the ICM on 6 July 2022.

Call for nominations for IMU prizes: in order to assist the committees in their task of selecting the awardees who will receive their distinctions at ICM 2022, the IMU invites nominations for the 2022 IMU prizes and awards. Nominations should be submitted to the Chair of the relevant committee.
To allow the committees sufficient time for the decision process, the IMU has set an extended deadline of 28 February 2021 for nominations. Further details are available here.

News from the community

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Ad hoc Committee on Diversity

As announced to IMU members in AO CL 23/2020, the Executive Committee of the IMU has created an ad hoc committee called the Committee on Diversity. Further information can be found here.

COVID-19 Resource Website
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COVID-19 Resource Website

In response to the COVID-19 pandemic and its effect on many aspects of our work and community, the IMU has launched a website with links to online resources covering general information, online seminars and mathematical research on the pandemic. For further details please click here.

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IMU joins CCU as liaison organization

The IMU has been admitted as a liaison organization to the Consultative Committee for Units (CCU) of the International Committee for Weights and Measures (CIPM).

Ramanujan Prize 2020
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Ramanujan Prize 2020 Announced

The 2020 Ramanujan Prize for Young Mathematicians from Developing Countries has been awarded to Carolina Araujo, a researcher at the Institute for Pure and Applied Mathematics (IMPA) in Rio de Janeiro, Brazil.

IMU 100
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Carlos E. Kenig: The International Mathematical Union (IMU) at 100

IMU President Carlos E. Kenig's article The International Mathematical Union (IMU) at 100 appeared in Notices of the American Mathematical Society Volume 67, Number 3, pages 404–407 published in March 2020.

The article is posted here with the permission of the American Mathematical Society.
Further information on Notices of the AMS can be found at

Abel Prize 2020

Abel Prize Laureates 2020 Announced

The Norwegian Academy of Science and Letters has announced Hillel Furstenberg (Hebrew University of Jerusalem, Israel) and Gregory Margulis (Yale University, USA) as joint recipients of the Abel Prize for 2020.

EC 2020
Photo: Rene January

IMU EC meeting 2020

The IMU EC held its annual meeting on February 22-23, 2020 in Cape Town, South Africa. The meeting was hosted by the African Institute for Mathematical Sciences (AIMS) South Africa

MCA 2021

MCA 2021

Mathematical Congress of the Americas 2021, MCA 2021, 19–24 July, Buenos Aires, Argentina


Call for Applications

100 grants - “Sao Paulo School of Advanced Science on Contemporary Logic, Rationality and Information” (SPLogiC)


March 14 – The International Day of Mathematics

On the initiative of the IMU, the 40th General Conference of UNESCO in Paris approved the Proclamation of March 14 (Pi Day) as the International Day of Mathematics (IDM).

"Mathematics is everywhere" is the theme for 2020, free material will be made available.

 Mathematicians of the World, Unite!

Illustrated history of the ICM

The book "Mathematicians of the World, Unite!" by G. Curbera is now electronically available on the IMU website. For more information click here


          IMU  ·A Founding Union of the IYBSSD

Pending Business for IMU Adhering Organizations

CL 1
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Nominations for President and Secretary General of the IMU

Adhering Organizations (AOs) of the IMU and the respective Committees for Mathematics are invited to nominate candidates for President and Secretary General of the IMU for the term 2023–2026. See AO CL 1/2021.

  • Date
  • Due
Updated Contact Information

Updated Contact Information

IMU members are requested to check their contact information, see AO CL 2/2021

  • Date
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IMU Membership Dues

IMU members are requested to settle current invoices and any dues in arrears in due time.

  • Date
  • Due


IMU Members Worldwide

IMU - a member of ISC  ·We are the global voice for science