Stefan Langerman

Stefan Langerman is a Belgian computer scientist and mathematician whose research covers computational geometry, data structures and recreational mathematics. He is a professor at the Université libre de Bruxelles, where he co-heads the algorithms research group with Jean Cardinal, and he is a director of research for the Belgian Fonds de la Recherche Scientifique, known as FRS-FNRS. He studied at the Université libre de Bruxelles and then at Rutgers University, where he took his doctorate in 2001 under William Steiger with a dissertation on algorithms and data structures in computational geometry. His work on data structures includes the co-invention of the queap and the notion of retroactive data structures, and he is also the chief executive of the family firm Langerman Diamonds.