There is another famous Jean Giraud, comics author.
Jean Giraud is a French mathematician.
He was a graduate student of Alexander Grothendieck and his book "Cohomologie non abélienne" (Springer, 1971) has become a classic, registering so far 104 citations.
From 1993 to 1994, he was deputy director for research of École Normale Supérieure de Lyon, where he was made interim director in 1994 and director from 1995 to 2000.
