International
Mathematical
Union

IMU

IMU Leadership 2023 – 2026

IMU Executive Committee (EC) 2023 – 2026

  • Hiraku Nakajima
  • IMU President
  • Japan
  • Christoph Sorger
  • IMU Secretary General
  • France
  • Ulrike Tillmann
  • IMU Vice President
  • UK
  • Tatiana Toro
  • IMU Vice President
  • USA/Colombia
  • Mouhammed Moustapha Fall
  • IMU EC Member-at-Large
  • Senegal
  • Nalini Joshi
  • IMU EC Member-at-Large
  • Australia
  • JongHae Keum
  • IMU EC Member-at-Large
  • Republic of Korea
  • Paolo Piccione
  • IMU EC Member-at-Large
  • Brazil
  • Günter M. Ziegler
  • IMU EC Member-at-Large
  • Germany
  • Tamar Ziegler
  • IMU EC Member-at-Large
  • Israel
  • Carlos E. Kenig
  • IMU EC Ex-officio Member (Past President)
  • USA

Commission for Developing Countries (CDC) 2023 – 2026

  • Andrea Solotar
  • CDC President
  • Argentina
  • Ludovic Rifford
  • CDC Secretary Policy
  • France
  • Jose Maria P. Balmaceda († 16/07/2026)
  • CDC Secretary Grants
  • Philippines
  • Mahouton Norbert Hounkonnou
  • CDC, African Member
  • Benin
  • Le Tuan Hoa
  • CDC, Asian Member
  • Vietnam
  • Mariel Saez
  • CDC, Latin American Member
  • Chile
  • Dayue Chen
  • CDC Member appointed by IMU EC
  • China
  • K. N. Raghavan
  • CDC Member appointed by IMU EC
  • India
  • Mercy Kazima
  • CDC Member appointed by ICMI EC (2025-2028)
  • Malawi
  • Hiraku Nakajima
  • CDC Ex-officio Member (IMU President)
  • Japan

International Commission on the History of Mathematics (ICHM) 2023 – 2026

  • Guillermo P. Curbera
  • ICHM
  • Spain
  • Isobel Falconer
  • ICHM
  • UK

International Commission on Mathematical Instruction (ICMI) 2025 – 2028

  • Merrilyn Goos
  • ICMI President
  • Australia
  • Jean-Luc Dorier
  • ICMI Secretary-General
  • Switzerland
  • Jinfa Cai
  • ICMI Vice President
  • USA
  • Betina Duarte
  • ICMI Vice President
  • Argentina
  • Mercy Kazima
  • ICMI EC Member-at-Large
  • Malawi
  • Núria Planas
  • ICMI EC Member-at-Large
  • Spain
  • Susanne Prediger
  • ICMI EC Member-at-Large
  • Germany
  • Ramaswamy Ramanujam
  • ICMI EC Member-at-Large
  • India
  • Cristina Sabena
  • ICMI EC Member-at-Large
  • Italy
  • Frederick K. S. Leung
  • ICMI EC Ex-officio Member (Immediate Past President of ICMI)
  • SAR, China
  • Hiraku Nakajima
  • ICMI EC Ex-officio Member (IMU President)
  • Japan
  • Christoph Sorger
  • ICMI EC Ex-officio Member (IMU Secretary General)
  • France

Committee on Publishing (CoP) 2023 – 2026*

*CoP was formerly known as the Committee on Electronic Information and Communication (CEIC).
Terms of membership are staggered.

  • Ilka Agricola
  • CoP Chair 2023 – 2026
  • Germany
  • Jean-Pierre Bourguignon
  • CoP Member 2021 – 2028
  • France
  • Kevin Buzzard
  • CoP Member 2021 – 2028
  • UK
  • Marie Farge
  • CoP Member 2019 – 2026
  • France
  • Lynn Heller
  • CoP Member 2025 – 2028
  • China
  • Rajeeva Karandikar
  • CoP Member 2019 – 2026
  • India
  • Takashi Kumagai
  • CoP Member 2023 – 2026
  • Japan
  • Ingrid Rewitzky
  • CoP Member 2021 – 2028
  • South Africa
  • Peter Taylor
  • CoP Member 2023 – 2026
  • Australia
  • Mark C. Wilson
  • CoP Member 2025 – 2026
  • USA

Committee for Women in Mathematics (CWM) 2023 – 2026

  • Carolina Araujo
  • CWM Chair
  • Brazil
  • Hélène Barcelo
  • CWM Vice-Chair
  • USA
  • U.K. Anandavardhanan
  • CWM Member-at-Large
  • India
  • Tony Ezome († 05/10/2025)
  • CWM Member-at-Large
  • Gabon
  • Catherine Greenhill
  • CWM Member-at-Large
  • Australia
  • Motoko Kotani
  • CWM Member-at-Large
  • Japan
  • Matilde Lalín
  • CWM Member-at-Large
  • Canada
  • Selma Negzaoui
  • CWM Member-at-Large
  • Tunisia
  • Ekin Ozman
  • CWM Member-at-Large
  • Turkey
  • Carola-Bibiane Schönlieb
  • CWM Member-at-Large
  • UK

Persons representing IMU in various organizations

  • Ilka Agricola
  • Committee on Data of the ISC (CODATA)
  • 2023 – 2026
  • Helge Holden
  • Consultative Committee for Units (CCU)
  • 2023 – 2026
  • JongHae Keum
  • COSPAR, International Scientific Union Representative
  • 2025 – 2026
  • Mihalis Dafermos
  • Gruber Foundation, Cosmology Prize, Selection Advisory Board
  • 2024 – 2026
  • Helge Holden
  • International Organization for Standardization (ISO)
  • 2026
  • JongHae Keum
  • ISC
  • 2025 – 2026
  • Mouhammed Moustapha Fall
  • UNESCO
  • 2023 – 2026
  • Tatiana Toro
  • Ramanujan Prize
  • 2023 – 2026
  • Paolo Piccione
  • ICMI (IMU EC liaison)
  • 2023 – 2026
  • Tamar Ziegler
  • CDC (IMU EC liaison)
  • 2023 – 2026
  • Tatiana Toro
  • ICHM (IMU EC liaison)
  • 2023 – 2026
  • Ulrike Tillmann
  • CoP (IMU EC liaison)
  • 2023 – 2026
  • Hiraku Nakajima
  • CWM (IMU EC liaison)
  • 2023 – 2026
  • Yoshiharu Kohayakawa
  • IMU News Editor
  • 2021 – 2028
  • Nalini Joshi
  • IMU News IMU EC correspondent
  • 2025 – 2026
  • Günter M. Ziegler
  • IDM (IMU EC liaison)
  • 2023 – 2026
  • Tatiana Toro
  • Committee on Diversity (IMU EC liaison)
  • 2023 – 2026
  • Nalini Joshi
  • Earth-Humanity Coalition (IMU EC liaison)
  • 2024 – 2026
  • June Barrow-Green
  • Curator of the IMU Archive
  • 2021 – 2028