Department of Mathematics, Princeton University. Research interests include geometric analysis, algebraic geometry, differential geometry. Recent preprints, course lecture-notes, list of publications,
Joint research appointment to Department of Mathematics and Materials Research Institute at Pennsylvania State University. His research involves domain pattern formation and domain switching in ferroelectric materials. Full-text eprints of a number of his papers.
Researcher in the Theory Group of Microsoft Research. His primary research interests are number theory, combinatorics, and theoretical computer science. Contact information and a nicely organized listing of eprints of his papers.