Jean Giraud (; 2 February 1936 – 27 or 28 March 2007)
, Philippe Gillet, ''ENS Info'' 70, April 2007. was a French mathematician, a student of Alexander Grothendieck. His research focused on non-abelian cohomology and the theory of

topoi In mathematics, a topos (, ; plural topoi or , or toposes) is a category that behaves like the category of sheaves of sets on a topological space (or more generally: on a site). Topoi behave much like the category of sets and possess a noti ...

. In particular, he authored the book ''Cohomologie non-abélienne'' (Springer, 1971) and proved the theorem that bears his name, which gives a characterization of a Grothendieck topos. From 1969 to 1989, he was a professor at

École normale supérieure de Saint-Cloud 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, Sav ...

. From 1993 to 1994, he was deputy director for research of

École normale supérieure de Lyon The École normale supérieure de Lyon (also known as ENS de Lyon, ENSL or Normale Sup' Lyon) is a French grande école located in the city of Lyon. It is one of the four prestigious écoles normales supérieures in France. The school is ...

, where he was made interim director in 1994 and director from 1995 to 2000.

References

External links

Jean Giraud, 1936–
at

Library of Congress The Library of Congress (LOC) is the research library that officially serves the United States Congress and is the ''de facto'' national library of the United States. It is the oldest federal cultural institution in the country. The library is ...

Authorities — with 4 catalogue records 1936 births 2007 deaths French mathematicians University of Paris alumni Place of birth missing Place of death missing {{France-mathematician-stub