Henri Lebesgue

Henri Léon Lebesgue (French: [ɑ̃ʁi leɔ̃ ləbɛɡ]; 1875–1941) was a French mathematician most famous 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.

External links

• O’Connor, John J.; Robertson, Edmund F., “Henri Lebesgue”, MacTutor History of Mathematics archive, University of St Andrews, http://www-history.mcs.st-andrews.ac.uk/Biographies/Lebesgue.html .