Pierre Berthelot (; born 1943) is a mathematician at the University of Rennes. He developed crystalline cohomology and rigid cohomology. Publications Berthelot, Pierre Cohomologie cristalline des schémas de caractéristique p>0. Lecture Notes in Mathematics, Vol. 407. Springer-Verlag, Berlin-New York, 1974. 604 pp. Berthelot, Pierre; Ogus, Arthur Notes on crystalline cohomology. Princeton University Press, Princeton, N.J.; University of Tokyo Press, Tokyo, 1978. vi+243 pp. References Home page of Pierre Berthelot External links Author profile in the database zbMATH Living people École Normale Supérieure alumni Algebraic geometers 20th-century French mathematicians University of Paris alumni Academic staff of the University of Rennes 1943 births 21st-century French mathematicians