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Bienvenue - Laboratoire Jacques-Louis Lions




Paris Cité
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Key figures

Key figures

189 people work at LJLL

86 permanent staff

80 researchers and permanent lecturers

6 engineers, technicians and administrative staff

103 non-permanent staff

74 Phd students

15 post-doc and ATER

14 emeritus scholars and external collaborators


January 2022



The Laboratory, established in 1969, is named after its founder Jacques-Louis Lions. it is now a joint research unit of Sorbonne University, University of Paris, and the Center National de la Recherche Scientifique.


The Jacques-Louis Lions Laboratory is the largest laboratory in France and one of the main one in the world for training and research in applied mathematics. It hosts activities of two second-year masters, which represent approximately one hundred students. Its areas of research cover the analysis, modeling, and high-performance scientific computing for a variety of phenomena represented by partial differential equations (PDEs). With approximately 100 professor, researchers, engineers, administrative staff, and as many doctoral or post-doctoral students, the Laboratory JLL collaborates with the economic world and with other scientific fields across a wide spectrum of applications : fluid dynamics ; theoretical physics, mechanics and chemistry ; control, optimization and finance ; medicine and biology ; signal and data processing.


The Director of the Jacques Louis Lions Laboratory is currently Emmanuel Trelat.

English version : February 2022