John Morgan is a professor of mathematics and founding director of the Simons Center for Geometry and Physics at Stony Brook University. His work is in the areas of geometry and topology. He has concentrated study of manifolds and smooth algebraic varieties. His most recent works include books, jointly with Gang Tian, explaining in detail the proof of the Poincaré conjecture and the geometrization conjecture, both of which concern the nature of three-dimensional spaces.
Morgan received his Ph.D. from Rice University in 1969. He was an instructor at Princeton from 1969 to 1972, an assistant professor at MIT from 1972 to 1974, and was associate professor and then professor at Columbia University from 1974 to 2009. In 2009, he joined Stony Brook University as Simons Center for Geometry and Physics Director. His awards include the Levi L. Conant Prize of the AMS (2009). He is a member of the AMS, an AMS Fellow (2013), and a member of the US National Academy of Sciences.