I am Professor of Mathematics at the George Washington University where I teach a wide range of advanced and introductory courses. Taught Dean's Seminar for Freshmen Language and Logic in Fall 2018. My research areas are computable model theory and computable algebra, computability theory, and theoretical computer science. My research has been supported by the National Science Foundation, Simons Foundation, and Columbian College Dean's Chair.

My Citations in Google Scholar

Spent fall 2014 at the Kurt Goedel Research Center for Mathematical Logic of the University of Vienna. I am involved in research collaboration in computability with Russia/Kazakhstan and Bulgaria.

Gave tutorials on computable structure theory at 11th Panhellenic Logic Symposium in Delphi, Greece, July 12-16, 2017, and at the Annual ASL Meeting in Boise, March 20-23, 2017, and a plenary talk at MAA Meeting at Bowie State University, Nov. 7-8, 2014.

My book, co-edited with A. Eskandarian and J. Chubb,  Logic and Algebraic Structure in Quantum Computing, Cambridge University Press, appeared in March 2016. Introduction.

GWU awarded me Trachtenberg Prize for Research in 2016.

Co-organizer (with M. Malliaris, B. Mazur, R. Miller, J. Pila, T. Scanlon, A. Shlapentokh, and C. Videla) of the Decidability, Definability and Computability in Number Theory program at the Mathematical Sciences Research Institute, Berkeley, Aug. 17-Dec. 18, 2020.  Lead organizer of Connections Workshop, August 20-21, 2020.

Was co-organizer (with K. Eisentraeger, J. Park and A. Shlapentokh) of the American Institute of Mathematics workshop Definability and Decidability Problems in Number Theory, San Jose, May 6-10, 2019.

Was chair of the Program Committee for the Winter ASL Meeting (with Joint Math Meetings) in Baltimore, January 18-19, 2019. Was a co-organizer of the Special Session on Computability in Algebra and Number Theory at the AMS Meeting in March 10-12, 2017 in Chareston, SC, Special Session on Computable Structure Theory at the AMS Meeting in March 7-8, 2015 in Washington, and a co-organizer of the joint AMS/ASL Special Session on Logic and Probability at the Joint Mathematics Meetings in January 2014 in Baltimore.

Served on the Program Committee for  2018 Logicum Colloquium in Bayreuth, Germany, Sept. 14-16, on the Program Committee for 2016 Computability in Europe meeting in Paris, June 27-July 1, and for the 2013 European Summer Meeting in Evora, Portugal. Chaired the Organizing Committee for the ASL 2010 North American Annual Meeting at GW.

Co-directed (with Ali Eskandarian) GW Center for Quantum Computing, Information, Logic and Topology, 2011-18.

Organize Washington Area Logic Seminar at GW, which has been selected as the University Seminar: Logic Across Disciplines for 2017-20.

Co-organize bi-annual meetings Knots in Washington, the most recent ones are: XLIX during February 7-9, 2020; XLVIII during May 10-12, 2019; XLVII during January 20-21, 2019; XLVI during May 4-6, 2018; XLV during Dec. 8-10, 2017; XLIV during April 28-30, 2017; XLIII during December 9-11, 2016; XLII during April 29-May 1, 2016XLI during December 4-6, 2015; XL in March 2015; XXXVIII in May 2014;and XXXVII in January 2014.

In Spring 2015, Fall 2015, and 2016-17 served as an organizer, and in 2017-18 as a co-organizer (with Joel Lewis), and in 2018-20 as a co-organizer (with Jozef Przytycki) of the Mathematics Colloquium.

Currently serve as faculty adviser for AWM GW Student Chapter.

Conference Talks