The goal of this little unformal workshop is to put together several new ideas arising in meanfield theory associted to the theory on measure of an infinite number of variables (Hewitt-Savage), numerical approximations of PDEs, artificial intelligence (transformers), statistical mechanics (cumulants).

Organizers: T. Paul, S. Rossi, and E. Trélat.

                                   Program

                   Wednesday 28 January 2026

 8.30 Welcome to Meanfieldland.

 9.00 - 10.00  Stefano Rossi (ETH Zurich)

       Infinite-wise interactions: meanfield and graph limits for mutiple-wise distinguishable agent systems

10.00 - 11.00   Emmanuel Trélat (Laboratoire Jacques-Louis Lions Paris)

       Universal approximations of quasilinear PDEs by finite distibguishable particle systems

11-00 -11.30   Coffee Break

11.30 - 12-30  Borjan Geshkovski (Laboratoire Jacques-Louis Lions Paris)

       The mathematics of transformers

14.00 - 15.00  Sergio Simonella (Sapienza Rone)

       Meanfield limit using cumulants, canonical & grandcanonical

15.00 - 16.00  Thierry Paul (LYSM Rome)

       Expansion at any orde around meanfield, a cumulants approach

16.00 - 16.30  Coffee Break

16.30 - 17.30  Mario Pulvirenti (Sapienza Rome)

       Low density and other kinetic limits using cumulants 

17.30 - 18.30  Mitia  Duerinckx (Université Libre de Brussels)

       Classical mean-field limits: new methods and persistent open problems

                    Thursday 29 January 2026

                           Round Meanfield and the Seven Dwarfs

IMPORTANT: The registration is free, but compulsory, considering the limited number of seats in the conference room