Pierre-Louis Lions

Pierre-Louis Lions is a Professor at the Collège de France since 2002, holding the chair in Partial Differential Equations and Applications. He previously taught at Paris-Dauphine University (1981–2001) and École Polytechnique (1983–2016). His research spans mathematical analysis of PDEs, fluid dynamics, and interdisciplinary applications.

• Key Contributions: Viscosity solutions (with M.G. Crandall), concentration-compactness method, mean-field game theory (with J.-M. Lasry), global existence for Boltzmann equations (with R.J. Di Perna), Navier-Stokes equations in compressible cases.

He has received world-renowned recognition, including the Fields Medal, honorary doctorates, and memberships in multiple national and international academies. Lions also co-founded startups MFG Labs and Differential Knowledge, and served as Chairman of the Board of Directors of École normale supérieure (2009–2014).