MATHEMATICIAN

Henri Lebesgue

1875 - 1941

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Henri Léon Lebesgue (; French: [ɑ̃ʁi leɔ̃ ləbɛɡ]; June 28, 1875 – July 26, 1941) was a French mathematician known for his theory of integration, which was a generalization of the 17th-century concept of integration—summing the area between an axis and the curve of a function defined for that axis. His theory was published originally in his dissertation Intégrale, longueur, aire ("Integral, length, area") at the University of Nancy during 1902. Read more on Wikipedia

His biography is available in different languages on Wikipedia. Henri Lebesgue is the 141st most popular mathematician (up from 146th in 2019), the 966th most popular biography from France (up from 1,046th in 2019) and the 30th most popular French Mathematician.

Henri Lebesgue is most famous for his contributions to the theory of measure and integration. He developed the concept of measure, which is a way of calculating the area of a set. He also developed the Lebesgue integral, which is a way of calculating the area under a curve.

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Among MATHEMATICIANS

Among mathematicians, Henri Lebesgue ranks 141 out of 1,004. Before him are Meton of Athens, Liu Hui, Hermann Weyl, Hermann of Reichenau, Annie S. D. Maunder, and Zu Chongzhi. After him are Ferdinand von Lindemann, Mikhail Ostrogradsky, John G. Kemeny, Gabriel Lamé, George Pólya, and Lars Ahlfors.

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Contemporaries

Among people born in 1875, Henri Lebesgue ranks 31. Before him are Thomas Burke, Fritz Kreisler, Mikalojus Konstantinas Čiurlionis, Edgar Wallace, Giovanni Gentile, and William D. Leahy. After him are Antonio Machado, Anatoly Lunacharsky, Paul Landowski, Matthias Erzberger, Zhang Zuolin, and Mihály Károlyi. Among people deceased in 1941, Henri Lebesgue ranks 32. Before him are Prajadhipok, Edwin S. Porter, Ernst Udet, Werner Sombart, Werner Mölders, and Kurt Koffka. After him are Ludwig Quidde, Eduard von Böhm-Ermolli, Pál Teleki, Sherwood Anderson, Günther Lütjens, and Louis Chevrolet.

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In France

Among people born in France, Henri Lebesgue ranks 966 out of 6,770. Before him are Agnes of Poitou (1025), Max Jacob (1876), Claude Perrault (1613), John, Duke of Berry (1340), Bernard Le Bovier de Fontenelle (1657), and Louis Barthou (1862). After him are Childebert III (678), Claudette Colbert (1903), Christian Clavier (1952), Pauline Viardot (1821), Agnès Sorel (1422), and Claude Louis Hector de Villars (1653).

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Among MATHEMATICIANS In France

Among mathematicians born in France, Henri Lebesgue ranks 30. Before him are Pierre Louis Maupertuis (1698), Jean-Victor Poncelet (1788), Jacques Hadamard (1865), Maurice René Fréchet (1878), Charles Hermite (1822), and Émile Borel (1871). After him are Gabriel Lamé (1795), Joseph Liouville (1809), Michel Rolle (1652), Jean Baptiste Joseph Delambre (1749), Joseph Bertrand (1822), and Jean-Pierre Serre (1926).

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