Henri Lebesgue

Henri Léon Lebesgue (June 28, 1875 – July 26, 1941) was a French mathematician best known for his contributions to the field of real analysis, particularly for developing the Lebesgue integral. The Lebesgue integral generalized the concept of integration by allowing for a broader class of functions and providing a more robust framework for convergence than the traditional Riemann integral.