Pierre Deligne

Pierre Rene, Viscount Deligne is a Belgian mathematician, born in Etterbeek on 3 October 1944, who is best known for his work on the Weil conjectures, for which he supplied a complete proof in 1973. He studied at the Universite libre de Bruxelles and completed his doctorate at the University of Paris-Sud in Orsay in 1972 under Alexander Grothendieck, and from 1970 until 1984 he was a permanent member of the Institut des Hautes Etudes Scientifiques near Paris before moving to the Institute for Advanced Study in Princeton. His work includes the theory of mixed Hodge structures, absolute Hodge cycles, a description of the moduli spaces of curves with David Mumford, and results on l-adic representations attached to modular forms with Jean-Pierre Serre. He won the Fields Medal in 1978, the Crafoord Prize in 1988, the Wolf Prize in 2008 and the Abel Prize in 2013.