Dr. Leslie F. Greengard is an American mathematician and computer scientist. Dr. Greengard serves as Executive Principal Investigator of RiskEcon® Lab @ Courant, and was previously the director of the Courant Institute of Mathematical Sciences, an independent division of the New York University (NYU).
He is currently Silver Professor of Mathematics and Computer Science at Courant, where he has been a faculty member since 1989. He is also a professor at Tandon School of Engineering at NYU and Director of the Center for Compuational Biology at the Flatiron Institute. Dr. Greengard joined Simons/Flatiron in 2013 as founding director of the Simons Center for Data Analysis, now called the Center for Computational Biology. Greengard holds an M.D. and Ph.D. in computer science from Yale University.
A member of the National Academy of Sciences and the National Academy of Engineering, Greengard has contributed to the fields of scientific computing, data analysis and integral equations. One of his most significant scientific achievements, together with Vladimir Rokhlin, was the development of the Fast Multipole Method (FMM), a mathematical technique with an enormous range of applications, from chip simulation to molecular modeling. In 2000, the Institute of Electrical and Electronics Engineers recognized the FMM as one of the top ten algorithms of the 20th century and in 2001, Greengard and Rokhlin received the Steele Prize for Seminal Contribution to Research from the American Mathematical Society for their work.
In addition to his research contributions, Greengard co-founded MadMax Optics, which developed advanced numerical algorithms to solve complex engineering problems in opto-electronics. At MadMax Optics, Greengard served as Chief Executive Officer and Chief Technology Officer from 2001 to 2004.