 NATO Advanced Study Institute: The arithmetic of hyperelliptic curves, Aug. 25  Sep. 5, 2014, Ohrid, Macedonia.
 Special session on the Arithmetic of Algebraic Curves, ACA 2013, Malaga, Spain
 MCAG 2012, Oakland University, May 1314, 2013 (supported by NSA)
 ECCAD, East Coast Computer Algebra Day, Oakland University, May 2012 (supported by NSA)
 Special Session on Computational Algebraic Geometry, Tampa, Florida, March 2012
 AMS Special Session on Computational Algebraic and Analytic Geometry for Lowdimensional Varieties, New Orleans AMS National Meeting, January 58, 2011.
 ACA 2010, Vlora, Albania, June 2010 (supported by the Ministry of Sciences in Albania)
 AMS Special Session on Computational Algebraic and Analytic Geometry for Lowdimensional Varieties, Washington DC, January 58, 2009.
 NATO Advanced Study Institute: New Challenges in Digital Communications, Vlora, Albania, April 28  May 9, 2008, (supported by NATO)
 Conference on algebra, coding theory, and cryptography, May 2627, 2007, Vlora, Albania.
 ACA 07, Applications of Computer Algebra, July 1922, 2007, Oakland, Michigan. (supported by NSF and NSA)
 Special session, AMS annual meeting: Computational Algebraic and Analytic Geometry, New Orleans, January 58, 2007.
 Special Session: Coding theory and cryptography, ACA 2006, Varna, Bulgaria, June 2629.
 Conference on Computational Aspects of Algebraic Curves, University of Idaho, May 2628, 2005 (supported by NSA)
 Special session, AMS annual meeting: Algorithmic Algebraic and Analytic Geometry, Atlanta, January 78, 2005.
 Computational Aspects of Algebraic Curves, ACA 2004.
 Computational Aspects of Algebraic Curves, ACA 2003, Raleigh, NC State

