Luc Illusie

Luc Illusie ( born 1940 ) is a French mathematician who deals with algebraic geometry.

Illusie studied with Henri Cartan ( he participated in the seminar Cartan / Schwartz 1963/64, in part ) and was in the 1960s, a close associate of Alexander Grothendieck, where he in 1971 received his doctorate at the University of Paris-Sud in Orsay ( Complexe cotangent et Deformation ). This and Pierre Berthelot but he previously gave SGA 6, the Grothendieck Seminar for 1966/67, out. He was a professor at the University of Paris-Sud, where he is now Professor Emeritus. 2006/ 07 he was at the Institute for Advanced Study.

With Daniel Quillen he introduced in 1970 the concept of Kotangenten complex. In 1990, he was with other editors of the Grothendieck Festschrift.

His doctoral counts Gérard Laumon (1983). In 2012 he received the Émile Picard Medal for his fundamental work on the Kotangenten complex, the Picard - Lefschetz formula, Hodge theory and the logarithmic geometry.