ⓘ Jean-Christophe Yoccoz


ⓘ Jean-Christophe Yoccoz

Jean-Christophe Yoccoz was a French mathematician. He was awarded a Fields Medal in 1994, for his work on dynamical systems.


1. Biography

Yoccoz attended the Lycee Louis-le-Grand, during which time he was a silver medalist at the 1973 International Mathematical Olympiad and a gold medalist in 1974. He entered the Ecole Normale Superieure in 1975, and completed an agregation in mathematics in 1977. After completing military service in Brazil, he completed his Ph.D. under Michael Herman in 1985 at Centre de mathematiques Laurent-Schwartz, which is a research unit jointly operated by the French National Center for Scientific Research CNRS and Ecole polytechnique. He took up a position at the University of Paris-Sud in 1987, and became a professor at the College de France in 1997, where he remained until his death. He was a member of Bourbaki.

Yoccoz won the Salem Prize in 1988. He was an invited speaker at the International Congress of Mathematicians in 1990 at Kyoto, and was awarded the Fields Medal at the International Congress of Mathematicians in 1994 in Zurich. He joined the French Academy of Sciences and Brazilian Academy of Sciences in 1994, became a chevalier in the French Legion of Honor in 1995, and was awarded the Grand Cross of the Brazilian National Order of Scientific Merit in 1998.


2. Mathematical work

Yoccozs worked on the theory of dynamical systems, his contributions include advances to KAM theory, and the introduction of the method of Yoccoz puzzles, a combinatorial technique which proved useful to the study of Julia sets.

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  • Helsinki and the ICM in 1998 in Berlin. Among his students was Jean - Christophe Yoccoz 1994 Fields Medalist. Herman, Michael - Robert 1978 Resultats
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  • mathematician Fields Medalist 2006 German - born Rachid Yazami Jean - Christophe Yoccoz mathematician Fields Medalist 1994 Biography portal France portal Lists
  • graduated from the Ecole normale superieure in 1977 same year as Jean - Christophe Yoccoz another Fields Medalist Refusing to take the agregation in Mathematics
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  • Jean BourgainF 1984 Carlos Kenig 1985 Thomas Wolff 1986 Nikolai Makarov 1987 Guy David and Jean Lin Journe 1988 Alexander Volberg and Jean - Christophe