Welcome!

I am Professor of Mathematics at the George Washington University where I teach a wide range of advanced and introductory courses. My research areas are computable algebra and computable model theory, computability theory, and theoretical computer science. National Science Foundation has been supporting my research, including NSF support for research collaboration in computability with Russia/Kazakhstan. I organize Washington Area Logic Seminar at GW, and co-organized the Special Session on Computable Mathematics (in honor of Alan Turing) at the American Math Society Meeting in March 2012 at GW. I am a director of the GW Center for Quantum Computing, Information, Logic and Topology and co-organize the bi-annual meetings Knots in Washington.