Michèle Raynaud
French mathematician

Michèle Raynaud (born Michèle Chaumartin; (1938-01-09)January 9, 1938) is a French mathematician, who works on algebraic geometry and who worked with Alexandre Grothendieck in Paris in the 1960s at the Institut des hautes études scientifiques (IHÉS).
Biography
Raynaud was a member of the séminaire de géométrie algébrique du Bois Marie (SGA) 1 and 2 and obtained her doctorate in 1972, supervised by Grothendieck at Paris Diderot University. Her thesis was entitled Théorèmes de Lefschetz en cohomologie cohérente et en cohomologie étale. Grothendieck wrote about her doctoral thesis in Récoltes et Semailles (p.168 Chapitre 8.1.) describing it as original, entirely independent, and a major work.
Michèle Raynaud married mathematician Michel Raynaud who was also a member of the Grothendieck school.
Publications
Théorèmes de Lefschetz en cohomologie cohérente et en cohomologie étale, Bull. Soc. Math. France, Memoirs Nr. 41, 1975
Théorèmes de Lefschetz en cohomologie étale des faisceaux en groupes non nécessairement commutatifs.
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Biographical claims are most persuasive when dates, appointments and relationships can be traced to records created close to the events described. The source revision retrieved here is dated Sep 1, 2026. The linked authority identifier is Q28085790. 2 of 2 selected statements include explicit references; 1 carry qualifiers and 0 use preferred rank. The first chronological checks are 1938, 1972 and 1975.
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This entry incorporates text from “Michèle Raynaud” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.