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Bienvenue - Laboratoire Jacques-Louis Lions

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Internships (10th and 11th grades high school students)
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

 

GdT Thésards : N. Grubic

 

Einstein-Euler spacetimes with Gowdy symmetry on T^3 - Nastasia grubic

We consider the class of Gowdy-symmetric spacetimes on $T^3$ governed by the Einstein-Euler equations, where we solve the initial value problem when the initial data have solely bounded variation and the fluid variables may contain shock waves. Analyzing, both, future expanding initial data and future contracting ones, we establish the existence of a global foliation by spacetime hypersurfaces so that the time function coincides with the area of the surfaces of symmetry. Our method of proof is based on a version of the random choice scheme adapted to the Einstein
equations and the symmetry class under consideration.