IMU General Assembly

Dear Participants,

It is a great pleasure for me to welcome you to the 20th meeting of the General Assembly (GA) of the International Mathematical Union (IMU).

As you may know, many of the IMU’s day-to-day decisions are made by the IMU Executive Committee, particularly the President and the Secretary General. However, every four years — typically immediately before the International Congress of Mathematicians (ICM) — the General Assembly convenes to make key decisions, such as electing members of IMU Committees and Commissions, approving the budget, selecting the next ICM host, and voting on membership matters. This meeting provides a unique opportunity for meaningful engagement and collective decision-making, and we encourage you to participate actively.

We appreciate that you undertake to come from all over the world to represent your country’s Adhering Organization. The General Assembly local committee, along with the Simons Foundation, the IMU and its Secretariat, are working hard to ensure the General Assembly runs smoothly and your time with us is both productive and enjoyable.

We also hope you will attend the ICM 2026 in Philadelphia. The Program Committee, led by Claire Voisin, and the Local Organizing Committee, co-chaired by Jalal Shatah and Yuri Tschinkel, are preparing an outstanding event.

We look forward to seeing you soon in New York City.

Hiraku Nakajima
President of the IMU

Registration Information

Registration for the 20th General Assembly is now open. Designated delegates and members of the IMU Executive Committee should use the links below to confirm their participation and secure their hotel rooms in NYC. Registration is by invitation only.  

General Assembly Meeting

Date: July 19-22, 2026
Location: Marriott Marquis Times Square, New York City 1535 Broadway, New York, NY 10036 

July 19, 2026: Executive Committee Meeting (8:00 AM-12:00 PM)
July 19, 2026: Arrivals, check-in & on-site registration
July 20, 2026: Meeting day 1
July 21, 2026: Meeting day 2
July 22, 2026: Departures 

Delegate’s Dinner

Date: July 20, 2026
Location: Marriott Marquis Times Square, New York City 1535 Broadway, New York, NY 10036 

The Delegate’s Dinner is free of charge for all registered General Assembly Participants.

How to Get to the Venue

JFK - John F. Kennedy International Airport hosts domestic and international flights. Distance to Marriott Marquis Times Square:
Car | 17 miles- 70 minutes                                                                      Public Transportation - 50 minutes

LGA- La Guardia Airport hosts domestic flights. Distance to Marriott Marquis Times Square:
Car | 11 miles- 50 minutes                                                                        Public Transportation - 50 minutes

EWR- Newark Liberty International Airport hosts domestic and international flights. Distance to Marriott Marquis Times Square:
Car | 16 miles- 50 mins                                                                       Public Transportation - 1 hour 

How to Get to Philadelphia From NYC

Coach buses will be provided departing from Marriott Marquis to The Pennsylvania Convention Center. 

Distance to Philadelphia CC - 96 miles | 2 hours Public Transportation - 1 hour 50 minutes