Jean-Christophe Yoccoz

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Jean-Christophe Yoccoz
Jean-Christophe Yoccoz.jpg
Jean-Christophe Yoccoz
Born (1957-05-29)May 29, 1957
Paris, France
Died September 3, 2016(2016-09-03) (aged 59)
Nationality French
Alma mater École Normale Supérieure
École Polytechnique
Paris-Sud 11 University
Collège de France
Known for Dynamical systems
Yoccoz puzzle
Awards Salem Prize (1988)
Fields Medal (1994)
Website www.college-de-france.fr/site/jean-christophe-yoccoz/Hommage-a-Jean-Christophe-Yoccoz.htm
Scientific career
Fields Mathematics
Doctoral advisor Michael Herman
Doctoral students Sylvain Crovisier (de)
Ricardo Pérez-Marco

Jean-Christophe Yoccoz (May 29, 1957 – September 3, 2016) was a French mathematician. He was awarded a Fields Medal in 1994, for his work on dynamical systems.[1][2]

Biography

Yoccoz attended the Lycée Louis-le-Grand,[3] during which time he was a silver medalist at the 1973 International Mathematical Olympiad and a gold medalist in 1974.[4][5] He entered the École Normale Supérieure in 1975, and completed an agrégation in mathematics in 1977.[6] After completing military service in Brazil, he completed his Ph.D. under Michael Herman in 1985 at the École Polytechnique.[6][7][8] He took up a position at the University of Paris-Sud in 1987, and became a professor at the Collège de France in 1997, where he remained until his death.[2] He was a member of Bourbaki.[9]

Yoccoz won the Salem Prize in 1988. He was an invited speaker at the International Congress of Mathematicians in 1990 at Kyoto,[10] and was awarded the Fields Medal at the International Congress of Mathematicians in 1994 in Zürich.[11][10] 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.[5]

Mathematical work

Yoccoz's 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.[5]

References

  1. ^ O'Connor, John J.; Robertson, Edmund F., "Jean-Christophe Yoccoz", MacTutor History of Mathematics archive, University of St Andrews .
  2. ^ a b "Le mathématicien Jean-Christophe Yoccoz est mort". Retrieved 6 September 2016. 
  3. ^ Administrator. "Des mathématiciens". Retrieved 6 September 2016. 
  4. ^ "Jean-Christophe Yoccoz's results". International Mathematical Olympiad. 
  5. ^ a b c "Jean-Christophe Yoccoz † › Heidelberg Laureate Forum". Retrieved 6 September 2016. 
  6. ^ a b "Yoccoz biography". Retrieved 6 September 2016. 
  7. ^ "Ciência se despede de matemático francês Jean-Christophe Yoccoz". Retrieved 6 September 2016. 
  8. ^ Jean-Christophe Yoccoz at the Mathematics Genealogy Project
  9. ^ Mashaal, Maurice (2006), Bourbaki: a secret society of mathematicians, American Mathematical Society, p. 19, ISBN 978-0-8218-3967-6 
  10. ^ a b "International Mathematical Union (IMU)". Retrieved 6 September 2016. 
  11. ^ "Fields Medals and Nevanlinna Prize 1994". Retrieved 6 September 2016. 


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