| I serve as Corresponding Editor for the SIAM
                  Journal on Applied Algebra and Geometry.  Please consider submitting your best work!  | 
            
I organize a research seminar
            in coding theory and cryptography, together with A.-L.
          Horlemann and J. Rosenthal. The seminar takes place at the
          Universities of Neuchatel, St. Gallen, and Zurich. 
        
During the period 2013-2019 I was a member of the management
          team of CIMPA (International
          Centre for Pure and Applied Mathematics), a non-profit
          international organization whose aim is promoting
          international cooperation in higher education and research in
          mathematics for the benefit of developing countries.