Fellow (2010) and life member of the American Physical Society.  Fellow (2004) of the Institute of Physics (UK).

Adjunct professor of physics, University of Miami (2015).

Suichi Kusaka Physics Prize, 1973;  ΦBK 1974;  ΣΞ 1974, 1979;  Mathematical Association of America, 1988

Principal Organizer of Workshops:  (Lattice) 1984, (Superstrings) 1986, (q-Groups) 1990, (Duality) 1996, (Brane Dynamics) 2003,    and co-editor of their Proceedings; 

Member of the Editorial Board of the Journal of Physics A, 1994-1998; presently, member of the Advisory Panel to the journal. 

Associate Editor of Frontiers in Mathematical Physics, 2013- to date.      

Member of the APS Heineman Prize selection committee, 2011 & 2012.

Honorary member of the Marmaris Institute for Theoretical and Applied Physics (ITAP, Turkey).

Referee of research proposals for numerous US Universities, NSF, DOE, NSERC, PSC-CUNY, and the Georgian SRNSF.

Visiting Appointments

IAS (Princeton) 1983; CINVESTAV (Mexico) 1985; Univ of Durham (UK) 1987; Univ of Miami 1988; Ohio State Univ 1990; Yukawa Institute (Kyoto) 1994; Lectured at advanced summer course on phase-space quantization, Phys580, Koç Univ (Turkey) 2010;  Boğaziçi Univ (Turkey) 2014; Instituto de Ciencias Nucleares, UNAM (Mexico) 2015; Taught Ph428--3 (Quantum Field Theory) at Northwestern Univ, Chicago, Spring 2015.

Publications