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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 research carried out at the Jacques-Louis Lions Laboratory covers numerous aspects of applied mathematics. More specifically, the research concerns the mathematical modeling of physical phenomena understood in a broad sense, that is, phenomena occurring in physics, mechanics, biology, medicine, chemistry, information science, economy, finance, etc. The relevant models address questions posed in other research centers or industrial Research and Development teams, and generally they are based on partial differential equations. The work focuses on the derivation of models, their theoretical and numerical analysis, and their simulation.


The spectrum of research topics in the Laboratory encompasses very focused problems (partial differential equations in their theoretical and numerical aspects) as well as extremely broad problems (modeling, analysis and simulation of complex phenomena, numerous fields of application). They can be considered from the standpoint of applications or from that of mathematical tools.


It is difficult to describe in a just few words the research carried out at the Jacques-Louis Lions Laboratory. They range from the most theoretical analysis of the properties of partial differential equations to high-performance computing and visualization, including optimization and control, or even the design and study of innovative numerical methods. For a (more) detailed presentation, see, for instance, the report which was produced for the 2018 five-year planNouvelle fenêtre. In the future we will provide an updated presentation of the Laboratory.

French version (2013) : E. Godlewski, Y. Maday, F. Murat

English version : February 2022