Pierre Berthelot
Berthelot in 1981
Born	(1943-01-27)27 January 1943
Died	7 December 2023(2023-12-07) (aged 80)
Nationality	French
Scientific career
Fields	Mathematics
Institutions	University of Rennes
Doctoral advisor	Alexander Grothendieck

Pierre Berthelot (French: [bɛʁtəlo]; 27 January 1943 – 7 December 2023) was a French mathematician at the University of Rennes. He developed crystalline cohomology and rigid cohomology. Berthelot died on 7 December 2023.^[1]

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. ISBN 0-691-08218-9