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Bienvenue - Laboratoire Jacques-Louis Lions

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Job shadowing (Year 10, Year 11 students) See https://www.math.univ-paris-diderot.fr/diffusion/index

Key figures

Key figures

189 people work at LJLL

90 permanent staff

82 researchers and permanent lecturers

8 engineers, technicians and administrative staff

99 non-permanent staff

73 Phd students

14 Post-doc and ATER

12 emeritus scholars and external collaborators

 

Figures : March 2019

 

The Laboratoire Jacques-Louis Lions celebrated its fortieth anniversary in 2009, but its origins date back as far as 1946, when Joseph Pérès, a scientist working in mechanics, was commissioned by the CNRS to create a structure intended to carry out research in different fields, including automatic translation and the development of essential computing infrastructure for French scientific research. This is how the Blaise Pascal Institute was created. A large part of its premises, which used to be a former chocolate factory, was located in rue du Maroc in the 19th arrondissement of Paris. Depending on changes in research policy and the scientific interests of its various directors, the institute welcomed linguists, logicians, mathematicians and future computer scientists.

René de Possel was appointed Professor to the Numerical Analysis Chair of the Faculty of Sciences of Paris in 1957, when he returned from Algeria. He also began to manage the Blaise Pascal Institute, thus replacing Louis Couffignal who had not succeeded in developing modern computing tools. René de Possel was an original and open-minded mathematician, one of the founders of the Bourbaki group. He was interested in various areas of pure and applied mathematics and welcomed researchers from different disciplines to the Institute. And it was thus that Jacques-Louis Lions arrived at the Blaise Pascal Institute from Nancy in 1962 and was appointed Professor to the Numerical Analysis Chair, succeeding René de Possel.

Jacques-Louis Lions quickly formed a small team of academics and researchers interested in differential equations, partial differential equations and the approximate computation of their solutions. Several groups were formed within the Blaise Pascal Institute. For instance, the numerical analysts gathered in an Associate Research Team which formed the core of the future Numerical Analysis Laboratory. At the same time, the computer scientists created the Institute of Programming that later became the Laboratory of Computer Science of Paris 6 university.

The Numerical Analysis Laboratory was created in 1969 under the direction of Jacques-Louis Lions when he moved along with his team of about twenty members to brand new premises located on the 5th floor of the Tower 55-65 on the Jussieu campus. The laboratory developed very quickly. Within a few years, the number of its members grew from twenty to fifty, its activities diversified and many fields of mathematics began to be represented in both research and teaching.

Jacques-Louis Lions was elected at the Collège de France in 1972 and at the Académie des sciences shortly after. He then handed the laboratory management over to one of his former students, Professor Pierre-Arnaud Raviart.

Text written by G. Tronel

February 2014
 
 
Translation carried out by the Masters 2 ILTS team