Jean-François Le Gall

Jean-François Le Gall is a full Professor at Université Paris-Saclay and a member of the Orsay Mathematics Laboratory (LMO) since 2006. He has held prominent positions at Pierre and Marie Curie University (1988-2006) and École Normale Supérieure (1997-2007). A Senior Member of the University Institute of France (2007-2017) and an elected member of the Academy of Sciences since 2013, he served as Vice-President of Research for the Mathematics Department at Orsay (2020–present) and led the ERC Advanced Grant GeoBrown (2017–2023).

• Education: Ecole Normale Supérieure (1978–1982), PhD in stochastic differential equations (1982), State Doctorate on Brownian motion (1987)

Research Interests focus on probability theory, particularly Brownian motion, superprocesses, random trees, planar maps, and their connections to PDEs and geometric models. His work bridges stochastic analysis, branching processes, and coalescence phenomena.

Selected Publications include foundational studies on the Brownian map, random geometry, and spatial branching processes. His 2025 paper on The area of spheres in the Brownian plane explores fractal properties of random metric spaces, while the 2020 Growth-fragmentation processes work links Brownian trees to fragmentation models.

Scientific Distinctions:

• 1986 Rollo Davidson Prize
• 1997 Loève Prize in Probability
• 2005 Sophie Germain and Fermat Prizes
• 2019 Wolf Prize in Mathematics
• 2022 BBVA Frontiers of Knowledge Award

Academic Leadership includes directing the Probability and Statistics Team (2013–2019) and the Master 2 in Probability and Statistics (2007–2015). He chairs editorial roles in Grundlehren der mathematischen Wissenschaften (since 2020) and Probability Theory and Related Fields (2005–2010).