Paul Pierre Lévy (15 September 1886 – 15 December 1971)^{[1]} was a French mathematician who was active especially in probability theory, introducing martingale and Lévy flight. Lévy processes, Lévy measures, Lévy's constant, the Lévy distribution, the Lévy skew alphastable distribution, the Lévy area, the Lévy arcsine law, and the fractal Lévy C curve are also named after him.
Paul Lévy  

Paul Pierre Lévy


Born  15 September 1886 Paris, France 
Died  15 December 1971 (aged 85) Paris, France 
Nationality  French 
Alma mater  University of Paris 
Known for  Lévy process Lévy flight Lévy measure Lévy's constant Lévy distribution Lévy C curve 
Scientific career  
Fields  Mathematics 
Institutions  École Polytechnique École des Mines 
Doctoral advisor  Jacques Hadamard Vito Volterra 
Doctoral students  Wolfgang Doeblin Michel Loève Benoît Mandelbrot Georges Matheron 
Lévy was born in Paris, the son of Lucien Lévy, an examiner at the École Polytechnique. Lévy also attended the École Polytechnique and published his first paper in 1905, at the age of nineteen, while still an undergraduate. His teacher and advisor was Jacques Hadamard. After graduation, he spent a year in military service and then studied for three years at the École des Mines, where he became a professor in 1913.^{[1]}
During World War I Lévy conducted mathematical analysis work for the French Artillery. In 1920 he was appointed Professor of Analysis at the École Polytechnique, where his students included Benoît Mandelbrot and Georges Matheron. He remained at the École Polytechnique until his retirement in 1959, with a gap during World War II after his 1940 firing because of the Vichy Statute on Jews.^{[1]}
Lévy received a number of honours, including membership at the French Academy of Sciences and honorary membership at the London Mathematical Society.^{[1]}
His daughter MarieHélène Schwartz and soninlaw Laurent Schwartz were also notable mathematicians.^{[2]}
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