Francis Buekenhout (born 23 April 1937 in Ixelles near Brussels) is a Belgian mathematician who introduced Buekenhout geometries and the concept of quadratic sets.
Buekenhout studied at the University of Brussels under Jacques Tits and Paul Libois.
[1] These largely disregard the concrete axiom systems of a projective or affine geometry and put these and many other incidence geometries into a common framework.
He has been a member of the Académie Royale des Sciences, Lettres et des Beaux-Arts de Belgique since May 2002, and in 1982 he won the Prix François Deruyts of this academy.
[1] Buekenhout co-founded the Belgian Mathematics Olympics in 1976 and organized them from 1976 to 1987.