"Jean Leray (1906-98): Master of applied mathematics," by Ivar Ekeland.Nature, 11 February 1999, page 482.
This obituary for Jean Leray discusses his profound contributions tomathematical analysis, especially partial differential equations. Leray foundmuch of his inspiration in problems from mechanics and physics and brought tothem his deep geometric insight and great technical capability. The obituaryidentifies some interesting parallels and contrasts between Leray's life andwork and that of Andre Weil, another great mathematician who was also born in1906 and died in 1998. See the Math Digest summary "Andre Weil (1906-98)" for information on the article about Weil.
--- Allyn Jackson