LEVY, PAUL

born Sept. 15, 1886, Paris, France died Dec. 15, 1971 in full Paul-pierre Lvy French mining engineer and mathematician noted for his work in the theory of probability. After serving as a professor at the cole des Mines de Saint-tienne, Paris, from 1910 to 1913, Lvy joined the faculty (191451) of the cole Nationale Suprieure des Mines, Paris. He also taught from 1920 to 1959 at the cole Polytechnique in Paris. Lvy contributed to the theory of probability, functional analysis, and other analysis problems, principally partial differential equations and series. He also studied geometry. Among his major works are Leons d'analyse fonctionnelle (1922, 2nd ed., 1951; Lessons in Functional Analysis); Calcul des probabilits (1925; Calculus of Probabilities); Thorie de l'addition des variables alatoires (193754; The Theory of Addition of Multiple Variables); and Processus stochastiques et mouvement brownien (1948; Stochastic Processes and Brownian Motion).