Marc Krasner (1912 – 13 May 1985, in Paris) was a Russian Empire-born French mathematician, who worked on algebraic number theory. Krasner emigrated from the Soviet Union to France and received in 1935 his PhD from the University of Paris under Jacques Hadamard with thesis Sur la théorie de la ramification des idéaux de corps non-galoisiens de nombres algébriques. From 1937 to 1960 he was a scientist at CNRS and from 1960 professor at the University of Clermont-Ferrand. From 1965 he was a professor at the University of Paris VI (Pierre et Marie Curie), where he retired in 1980 as professor emeritus.
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| - Marc Krasner (de)
- Marc Krasner (fr)
- Marc Krasner (en)
- Marc Krasner (pt)
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| - Marc Krasner, né le 9 avril 1912 à Odessa et mort le 13 mai 1985 à Paris, est un mathématicien français né en Russie, spécialiste de théorie algébrique des nombres. (fr)
- Marc Krasner (1912 — Paris, 13 de maio de 1985) foi um matemático francês natural da Rússia. Trabalhou com teoria algébrica dos números. Em 1958 recebeu o Prêmio Paul Doistau-Émile Blutet da Académie des Sciences. (pt)
- Marc Krasner (* 1912; † 13. Mai 1985 in Paris) war ein russischstämmiger französischer Mathematiker, der sich mit algebraischer Zahlentheorie beschäftigte. Krasner stammte aus Russland und wurde 1935 an der Universität Paris bei Jacques Hadamard promoviert (Sur la théorie de la ramification des idéaux de corps non-galoisiens de nombres algébriques). 1937 bis 1960 war er Wissenschaftler des CNRS und ab 1960 Professor an der Universität Clermont-Ferrand. Ab 1965 war er Professor an der Universität Paris VI (Pierre et Marie Curie), wo er 1980 emeritiert wurde. (de)
- Marc Krasner (1912 – 13 May 1985, in Paris) was a Russian Empire-born French mathematician, who worked on algebraic number theory. Krasner emigrated from the Soviet Union to France and received in 1935 his PhD from the University of Paris under Jacques Hadamard with thesis Sur la théorie de la ramification des idéaux de corps non-galoisiens de nombres algébriques. From 1937 to 1960 he was a scientist at CNRS and from 1960 professor at the University of Clermont-Ferrand. From 1965 he was a professor at the University of Paris VI (Pierre et Marie Curie), where he retired in 1980 as professor emeritus. (en)
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| - Marc Krasner (* 1912; † 13. Mai 1985 in Paris) war ein russischstämmiger französischer Mathematiker, der sich mit algebraischer Zahlentheorie beschäftigte. Krasner stammte aus Russland und wurde 1935 an der Universität Paris bei Jacques Hadamard promoviert (Sur la théorie de la ramification des idéaux de corps non-galoisiens de nombres algébriques). 1937 bis 1960 war er Wissenschaftler des CNRS und ab 1960 Professor an der Universität Clermont-Ferrand. Ab 1965 war er Professor an der Universität Paris VI (Pierre et Marie Curie), wo er 1980 emeritiert wurde. Krasner befasste sich mit p-adischer Analyse. 1944 führte er den Begriff ultrametrische Räume ein, zu denen auch die p-adischen Zahlen gehören. 1958 erhielt er den Prix Paul Doistau-Émile Blutet der Académie des sciences. (de)
- Marc Krasner (1912 – 13 May 1985, in Paris) was a Russian Empire-born French mathematician, who worked on algebraic number theory. Krasner emigrated from the Soviet Union to France and received in 1935 his PhD from the University of Paris under Jacques Hadamard with thesis Sur la théorie de la ramification des idéaux de corps non-galoisiens de nombres algébriques. From 1937 to 1960 he was a scientist at CNRS and from 1960 professor at the University of Clermont-Ferrand. From 1965 he was a professor at the University of Paris VI (Pierre et Marie Curie), where he retired in 1980 as professor emeritus. Krasner did research on p-adic analysis. In 1944 he introduced the concept of ultrametric spaces, to which p-adic numbers belong. In 1951, alongside Lev Kaluznin, he proved the Krasner-Kaloujnine universal embedding theorem, which states that every extension of one group by another is isomorphic to a subgroup of the wreath product.A well-known Krasner's theorem, everywhere known as Krasner's lemma, relies the topological structure and the algebraic structure of vector spaces over local fields. In 1958 he received the Prix Paul Doistau–Émile Blutet of the Académie des Sciences. (en)
- Marc Krasner, né le 9 avril 1912 à Odessa et mort le 13 mai 1985 à Paris, est un mathématicien français né en Russie, spécialiste de théorie algébrique des nombres. (fr)
- Marc Krasner (1912 — Paris, 13 de maio de 1985) foi um matemático francês natural da Rússia. Trabalhou com teoria algébrica dos números. Em 1958 recebeu o Prêmio Paul Doistau-Émile Blutet da Académie des Sciences. (pt)
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