Professional Societies

1. Romanian Mathematical Society [from 1976 on].

   Member of the Council of RMS [from 1999 on].

   President of the Bucharest section of RMS [from 2007 on]

   First Deputy President of RMS [from 2008 on]

2. American Mathematical Society [from 1982 on].

3. Gesellschaft für angewandte Mathematik und Mechanik (GAMM) [from 1987 on]

4. Romanian Physical Society, 1990-1991.