Henri Lebesgue
| Henri Lebesgue | |
|---|---|
| Born | June 28, 1875 | 
| Died | July 26, 1941 (aged 66) | 
| Nationality | French | 
| Alma mater | École Normale Supérieure University of Paris | 
| Known for | Lebesgue integration Lebesgue measure | 
| Awards | Fellow of the Royal Society Poncelet Prize for 1914 | 
| Scientific career | |
| Fields | Mathematics | 
| Institutions | University of Rennes University of Poitiers University of Paris Collège de France | 
| Doctoral advisor | Émile Borel | 
| Doctoral students | Paul Montel Zygmunt Janiszewski Georges de Rham | 
Henri Léon Lebesgue ForMemRS (/ləˈbɛɡ/; 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.