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Pierre-Louis Lions
Mathematician

Pierre-Louis Lions

Famoose for

Partial differential equations and the calculus of variations.

Viscosity solutions · Boltzmann equation

Born
11 August 1956
Birthplace
Grasse

More people

Marie CurieDiscovering polonium and radium.Albert EinsteinDeveloping the theory of relativity.Charles DarwinExplaining evolution through natural selection.

Pierre-Louis Lions

French mathematician recognised with the 1994 Fields Medal for work spanning nonlinear equations and mathematical analysis.

Early life

Paris training

Entered the École normale supérieure in 1975 and completed his doctorate at Pierre and Marie Curie University in 1979.

Career

  1. 1977

    First research

    Published early work on fixed-point algorithms.

  2. 1979

    Doctorate

    Completed research under Haïm Brézis.

  3. 1994

    Fields Medal

    Recognised while working at Paris Dauphine University.

Contributions

Viscosity solutions

Developed tools for nonlinear differential equations.

Boltzmann equation

Contributed to the analysis of equations describing gases.

Beyond work

Family

The son of mathematician Jacques-Louis Lions, married Lila Laurenti in 1979; they have a son.

Sources & photo creditBiography and career ↗Biographical references ↗

Original photograph. Cropped and displayed in monochrome.

Photo: Philippe Binant. CC BY-SA 3.0 · Original image. Cropped and displayed in monochrome.