Description: (Mathematician)
Henri Léon Lebesgue was a renowned French mathematician known for his revolutionary contributions to the theory of integration. His work transformed the understanding of integration by introducing a more flexible and comprehensive approach. The theory he developed in his dissertation expanded the traditional concept of integration, leading to advancements in mathematics. Lebesgue's innovative ideas and research have had a lasting impact on the field, establishing him as a significant figure in the history of mathematical analysis.