The research conducted by Alain Chenciner from 1966 onwards for the CNRS focused on the evolution of dynamical systems and their applications within celestial mechanics. Born in 1943 in Villeneuve-sur-Lot, he developed a significant career in French academia, contributing to the understanding of differential topology, singularity theory, and the complex mechanics governing the movement of multiple bodies.
Academic Foundations
Chenciner began his formal mathematical education at the École polytechnique, where he studied from 1963 to 1965. Following this period, he commenced research at the Centre de Mathématiques, founded by Laurent Schwartz. In 1971, he earned his Ph.D. from the University of Paris XI. His thesis defense, titled Sur la géométrie des strates de petites codimensions de l'espace des fonctions différentiables réelles sur une variété, involved a committee including René Thom, Laurent Schwartz, and Henri Cartan.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Career Development and Teaching
His tenure as a university teacher included positions at several major institutions. He served as a maître de conférences at the University of Paris XI before moving to the University of Paris VII in 1973. In 1975, he joined the University of Nice. Returning to the University of Paris VII in 1978, he advanced to professor extraordinarius in 1981 and professor ordinarius in 1991. He transitioned to professor emeritus in 2012.
Research and Contributions
Early in his career, Chenciner applied differential topology to dynamical systems, building on the work of Stephen Smale. His later research shifted toward celestial mechanics, specifically the n-body and three-body problems, as well as the study of bifurcations at elliptical fixed points. In 1992, he co-founded the research group astronomie et systèmes dynamiques at the Observatory of Paris alongside Jacques Laskar. He served as an invited speaker at the 2002 International Congress of Mathematicians in Beijing.
Professional Recognition and Publications
The American Mathematical Society elected Chenciner as a fellow in 2012. Throughout his career, he has produced influential scholarly works, including the 2007 volume Courbes Algébriques Planes and the Scholarpedia entry on the Three Body Problem. He also served as an editor for the 2002 publication Celestial Mechanics, which was dedicated to Donald Saari. He has mentored students including Daniel Bennequin.
Fast facts
- Born: 1943, Villeneuve-sur-Lot
- Citizenship: France
- Alma Mater: École Normale Supérieure, University of Paris, École polytechnique
- Professional Membership: American Mathematical Society
- Fellowship: American Mathematical Society (2012)
- Language: French
Questions readers ask
Which research group did Alain Chenciner help establish?
In 1992, he co-founded the astronomie et systèmes dynamiques group at the Observatory of Paris with Jacques Laskar.
What is the primary focus of Chenciner's mathematical research?
He specializes in dynamical systems with applications to celestial mechanics, specifically investigating the three-body and n-body problems.
Achievements
- Held posts at University of Paris-Sud, Paris Diderot University and University of Nice Sophia Antipolis
