Invited Seminar Presentations at Universities

1. La Méthode de Dandelin-Graeffe, Université de Haute Alsace, Séminaire d'Algèbre Colmar-Freiburg, 12 Mai 2000.

2. Factorisation des Polynômes, Université de Haute Alsace, Séminaire d'Algèbre Colmar-Freiburg, 31 Mai 1999.

3. O perspectiva istorica aspura teoriei eliminarii, Univ. Târgu Mures, 14 Noiembrie, 1996.

4. Newton Polygons and Irreducibility, Waikato University, Department of Mathematics, Hamilton (New Zealand), 7 Aprilie, 1994.

5. Generalized Formal Power Series, The University of Auckland, Department of Mathematics (New Zealand), 6 Aprilie, 1994.

6. Randomness and Polynomial Arithmetic, University of Auckland, Department of Computer Science (New Zealand), 6 Aprilie, 1994.