Jean Leray (1906-1998) was a mathematician at Collège de France. He obtained his PhD degree in 1933 from École Normale Supérieure de Lyon, supervised by Henri Villat.
The paper that introduced sheaves:
The paper that introduced spectral sequences:
Last revised on December 19, 2025 at 11:36:14. See the history of this page for a list of all contributions to it.