11-29 July 2022
Europe/Paris timezone


Organizing Committee: Pierre-Henri Chaudouard (IMJ-PRG),  Wee Teck Gan (National Univ. of Singapore), Tasho Kaletha (Univ. of Michigan), Yiannis Sakellaridis (Johns Hopkins Univ.)

Scientific Committee: Gérard Laumon (Univ. Paris-Sud), Colette Mœglin (IMJ-PRG), Bo Châu NGÔ (Chicago Univ.), Jean-Loup Waldspurger (IMJ-PRG)

The "Summer School on the Langlands Program" will be held at the Institut des Hautes Etudes Scientifiques (IHES) from 11 to 29 July. IHES is located in Bures-sur-Yvette, south of Paris (40 minutes by train from Paris).

This school is open to everybody but intended primarily for young participants, including Ph.D. students and postdoctoral fellows.

The school will be held in a hybrid format form, with courses and talks given on-site and remotely and all streamed simultaneously through Zoom and recorded. A collaborative communication platform such as Slack will be also set up in parallel with Zoom, in particular for the exercise and discussion sessions.

N.B.: Covid-19 regulations: for those participating in person, the sanitary pass may be required (depending on health regulations on the day of the event).

It has been almost 45 years since the influential summer school held in Corvallis, Oregon in 1977 brought together the leading experts of the Langlands program and defined the research agenda in this area for subsequent decades, at the same time inspiring and enabling several generations of young researchers to join in this exciting journey. This 3-week IHES summer school aims to do the same for the next phase of development in the Langlands program.

Recent decades have brought tremendous progress on the project of endoscopy, the extension of the Langlands program to the “relative” setting of spherical varieties and other related spaces, numerous successful “explicit” methods (such as the theta correspondence) to construct functoriality, novel ideas “beyond endoscopy”, and arithmetic applications of both the theta correspondence and the relative trace formula to the study of special cycles and their generating series. Ideas from the geometric Langlands program have begun impacting and enriching the classical Langlands program in significant ways. In particular, the idea that the “space of Langlands parameters” is not just a set, but a (putative) geometric space, can be used to organize a lot of developments around reciprocity, including the Taylor–Wiles method, derived structures, the Langlands correspondence over function fields, and the geometrization of the local Langlands conjecture.

The summer school will attempt to bring these exciting new directions together and explore their interactions.


  • BEUZART-PLESSIS Raphaël (Univ. Aix-Marseille)
  • CARAIANI Ana (Imperial College)
  • DAT Jean-François (IMJ-PRG)
  • EMERTON Matthew (Chicago Univ.)
  • FARGUES Laurent (IMJ-PRG)
  • FENG Tony (MIT)
  • FINTZEN Jessica (Duke Univ. & Cambridge Univ.)
  • GEE Toby (Imperial College)
  • HARRIS Michael (Columbia Univ.)
  • HELLMANN Eugen (Univ. Münster)
  • KUDLA Stephen (Toronto Univ.)
  • LAPID Erez (Weizmann Inst.)
  • MOREL Sophie (ENS Lyon)
  • NGÔ Bo Châu (Chicago Univ.)
  • PRASAD Dipendra (IIT Bombay)
  • RASKIN Sam (Univ. of Texas)
  • SCHOLZE Peter (Univ. Bonn)
  • SHIN Sug Woo  (UC Berkeley)
  • TAÏBI Olivier (ENS Lyon)
  • VENKATESH Akshay (IAS)
  • WEINSTEIN Jared (Boston Univ.)
  • XUE Cong (IMJ-PRG)
  • YUN Zhiwei (MIT)
  • ZHANG Wei (MIT)
  • ZHU Xinwen (CALTECH)

This is an IHES Summer School, organized in partnership with the Clay Mathematical Institute, the support of the Société Générale, and the FMJH.


Marilyn and James Simons Conference Center
35 route de Chartres, F-91440 Bures-sur-Yvette, France

The IHÉS hopes to be able to provide partial financial support to cover housing for most accepted graduate students and postdocs. Some limited amount of additional funds will be available for special circumstances.

Registration for this event is currently open.