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Jean-Alexandre-Eugène Dieudonné ( July 1 1906 - November 29 1992) was a French mathematician, known for research in abstract algebra and functional analysis, for close involvement with the Nicolas Bourbaki pseudonymous group and the Éléments de géométrie algébrique project of Alexander Grothendieck, and as a historian of mathematics, particularly in the fields of functional analysis and algebraic topology. His work on the classical group s (the book La Géométrie des groupes classiques was published in 1955), and on formal groups, introducing what now are called Dieudonné module s, had a major effect on those fields.

He was born and brought up in Lille, with a formative stay in England where he was introduced to algebraAlgebra Algebra (from the Arabic al-jabr meaning reunion connection or completion is a branch of mathematics which may be roughly characterized as a generalization and extension of arithmetic; it also refers to a particular kind of abstract algebra struct. In 1924 he was accepted for the École Normale SupérieureThe cole Normale Superieure (also known as Normale Sup Normale ENS ENS-Ulm or Ulm is an elite French grande ecole whose main campus is located around the rue d'Ulm ( Ulm Street) in the 5th arrondissement of Paris. Originally meant to train high school tea, where André WeilAndre Weil ( May 6, 1906 August 6, 1998) was one of the great mathematicians of the 20th century, a founding member of the influential Bourbaki group. He was brother of the philosopher Simone Weil. Born in Paris, he studied in Paris, Rome and Gottingen an was a contemporary. He began working, conventionally enough, in complex analysisComplex analysis is the branch of mathematics investigating holomorphic functions, i. functions which are defined in some region of the complex plane, take complex values, and are differentiable as complex functions. Complex differentiability has much str. In 1934 he was one of the group of normaliens convened by Weil, which would become 'Bourbaki'.

Dieudonné was always the most explicit about Bourbaki: where the other participants gave the impression of not wishing to shed the student atmosphere of pranks, hoaxes and gratuitous secrecy and disinformative comments to outsiders, he would provide a reasoned approach to the group and its aims. Formative on all French mathematicians of his generation was the 'hecatomb': the loss of so many of the best students of the generation immediately before, as casualties of World War IWorld War I (also known as the First World War , the Great War the War of the Nations and the "War to End All Wars") was a world conflict occurring from 1914 to 1918. No previous conflict had mobilized so many soldiers, or involved so many in the field of. His seriousness on presentational matters led to outbreaks of teasing by colleagues in the group.

Bourbaki was often seen as subversive and perversely radical, wishing to change mathematical research onto a new de facto standard of definitions and pedagogy. Dieudonné's line was that continuity in the French tradition of mathematics had been lost: classical analysis de Papa was on offer from the older figures, but inadequate to the needs of the day. Hence the emphasis on the more attractive German school: David HilbertDavid Hilbert ( January 23, 1862 February 14, 1943) was a German mathematician born in Wehlau, near Konigsberg, Prussia (now Znamensk, near Kaliningrad, Russia) who is recognized as one of the most influential mathematicians of the 19th and early 20th cen, Emmy NoetherEmmy Noether ( March 23 1882 April 14 1935) was one of the most talented mathematicians of the early 20th century, with penetrating insights that she used to develop elegant abstractions which she formalized beautifully. She was born Amalie Noether in Erl and others of the 'school of Göttingen' such as Hermann Weyl, the Austrian Emil Artin and Hungarian John von Neumann. Bourbaki was indeed a kind of reception committee.

His academic career comprised a number of positions in France, the USA and a time in São Paulo, and finally in Nice. He served in the French Army in World War II, and then taught in Clermont-Ferrand until the liberation of France.

He was a prolific writer, drafting much of the Bourbaki series of texts, the many fascicules of the EGA algebraic geometry series (the foundation work on scheme theory), and nine volumes of his Traité d'Analyse. The first volume of the Traité, translated into English as Foundations of Modern Analysis (1960), became a distinctive graduate textbook on functional analysis. A common attitude in France was that the elaboration of the Traité was something many could have done; this is perhaps a tribute to the success of the Bourbaki renewal , which had started with a pledge to update the analysis treatises of figures such as Goursat

He wrote also individual monographs on Infinitesimal Calculus, Linear Algebra and Elementary Geometry, invariant theory, commutative algebra, algebraic geometry, and formal groups. A broad survey of mathematics from the Bourbakiste perspective provided a natural focus of controversy. As one mathematician from another camp put it: 'good to know where's one's research field lies — down with the social diseases'.

With Laurent Schwartz he supervised the early research of Alexander Grothendieck; later from 1959 to 1964 he was at IHES alongside Grothendieck, and collaborating on the expository work needed to support the project of refounding algebraic geometry on the new basis of schemes. This was left in an incomplete state, primarily because of the sheer scale of what was being attempted. It could also be said, however, that the extrapolation of the Bourbaki approach to that context 'tested it to destruction'.



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