Jean-Yves Chemin (born 23 April 1959 in

Rouen Rouen (, ; or ) is a city on the River Seine in northern France. It is the prefecture of the Regions of France, region of Normandy (administrative region), Normandy and the Departments of France, department of Seine-Maritime. Formerly one of ...

) is a French mathematician, specializing in nonlinear partial differential equations.

Education and career

Chemin studied from 1979 at the

École normale supérieure de Cachan École may refer to: * an elementary school in the French educational stages normally followed by secondary education Secondary education or post-primary education covers two phases on the International Standard Classification of Education scal ...

(now named the École normale supérieure Paris-Saclay) with licentiate in 1980 and ''

agrégation In France, the ''agrégation'' () is a competitive examination for civil service in the French public education system. Candidates for the examination, or ''agrégatifs'', become ''agrégés'' once they are admitted to the position of ''professe ...

'' in 1982. At

Paris-Sud University Paris-Sud University (French: ''Université Paris-Sud''), also known as University of Paris — XI (or as Université d'Orsay before 1971), was a French research university distributed among several campuses in the southern suburbs of Paris, in ...

(Paris XI) he graduated in 1983 with

Diplôme d'études approfondies A Master of Advanced Studies or Master of Advanced Study (MAS, M.A.S., or MASt) is a postgraduate degree awarded in various countries. Master of Advanced Studies programs may be non-consecutive programs tailored for "specific groups of working pro ...

(DEA) and in 1986 with doctorate in mathematics. His doctoral dissertation ''Analyse microlocale précisée de solutions d’équations aux dérivées partielles non linéaires'' was supervised by

Jean-Michel Bony Jean-Michel Bony (born 1 February 1942 in Paris) is a French mathematician, specializing in mathematical analysis. He is known for his work on microlocal analysis and pseudodifferential operators. Education and career Bony completed his undergrad ...

. Chemin became in 1986 '' Attaché de recherche'' at the

École Polytechnique École may refer to: * an elementary school in the French educational stages normally followed by secondary education establishments (collège and lycée) * École (river), a tributary of the Seine flowing in région Île-de-France * École, Savoi ...

and in 1988 '' Chargé de recherche'' at the

CNRS The French National Centre for Scientific Research (french: link=no, Centre national de la recherche scientifique, CNRS) is the French state research organisation and is the largest fundamental science agency in Europe. In 2016, it employed 31,637 ...

. In 1989 he received his

habilitation Habilitation is the highest university degree, or the procedure by which it is achieved, in many European countries. The candidate fulfills a university's set criteria of excellence in research, teaching and further education, usually including a ...

with a thesis on singularities of nonlinear hyperbolic partial differential equations. From 1991 to 1995 he was ''

Maître de conférences ''Maître'' (spelled ''Maitre'' according to post-1990 spelling rules) is a commonly used honorific for lawyers, judicial officers and notaries in France, Belgium, Switzerland and French-speaking parts of Canada. It is often written in its abbrev ...

'' at the École Polytechnique. At

Pierre and Marie Curie University Pierre and Marie Curie University (french: link=no, Université Pierre-et-Marie-Curie, UPMC), also known as Paris 6, was a public university, public research university in Paris, France, from 1971 to 2017. The university was located on the Jussi ...

(Paris VI) in the Jacques-Louis Lions Laboratory, he was from 1993 to 2001 a professor and is since 2004 a professor. From 2001 to 2004 he was ''Professeur à temp plein'' (full-time non-tenured professor) at the École Polytechnique. His research deals with nonlinear partial differential equations describing physical systems that evolve over time. He focuses particularly on the Navier-Stokes equations and also works on the semi-linear Schrödinger equation and analysis on the

Heisenberg group In mathematics, the Heisenberg group H, named after Werner Heisenberg, is the group of 3×3 upper triangular matrices of the form ::\begin 1 & a & c\\ 0 & 1 & b\\ 0 & 0 & 1\\ \end under the operation of matrix multiplication. Elements ' ...

. In 2012 he was awarded the ''Grand Prix Servant'' of the

French Academy of Sciences The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV of France, Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific me ...

for his work on the Navier-Stokes equations. From 1995 to 2001 he was a member of the

Institut Universitaire de France The Institut Universitaire de France (IUF, Academic Institute of France), is a service of the French Ministry of Higher Education that distinguishes each year a small number of university professors for their research excellence, as evidenced by t ...

. In 1995 he was awarded the ''Prix Langevin'' of the Académie des Sciences. Chemin was an invited speaker in 1994 at the

International Congress of Mathematicians The International Congress of Mathematicians (ICM) is the largest conference for the topic of mathematics. It meets once every four years, hosted by the International Mathematical Union (IMU). The Fields Medals, the Nevanlinna Prize (to be rename ...

(ICM) in Zürich and an invited speaker with

Hajer Bahouri Hajer Bahouri (born 30 March 1958, in Tunis) is a Franco-Tunisian mathematician who is interested in partial differential equations. She is Director of Research at the National Center for Scientific Research and the Laboratory of Analysis and Appl ...

in 2002 at the ICM in Beijing.arXiv preprint
/ref> Chemin's doctoral students include

Isabelle Gallagher Isabelle Gallagher (born 27 October 1973) is a French mathematician. Her research concerns partial differential equations such as the Navier–Stokes equations, wave equation, and Schrödinger equation, as well as harmonic analysis of the Heis ...

Books

* (French original, ''Asterisque'', tome 230, Societé Mathématiques de France, 1995) * with Benoit Desjardins, Isabelle Gallagher, and Emmanuel Grenier: * with Hajer Bahouri and Raphaël Danchin:

References

External links

* * * {{DEFAULTSORT:Chemin, Jean-Yves 1959 births Living people 20th-century French mathematicians 21st-century French mathematicians Fluid dynamicists PDE theorists University of Paris alumni Pierre and Marie Curie University faculty Scientists from Rouen