He received his Ph.D. in Computer Science from the California Institute of Technology. Before joining the faculty at NYU, he was a postdoctoral researcher at the Computer Science Department of Stanford University. A Sloan Foundation Fellow from 2000-2002; he received the NSF CAREER award in 2001 and an IBM Faculty Partnership Award in 2001-2004 and 2006. His primary research interests are geometric modeling and scientific computing. His research focuses include: - Geometric modeling: subdivision surfaces, variational modeling, manifold constructions, interactive and appearance based modeling, discretization of geometric quantities. - Scientific computing: fast multipole methods, numerical solution of integral equations, fluid and deformable membrane simulation, parallel algorithms and software tools.