At some universities I have given some longer lecture series.
Here is the list of these universities with the period the
lectures took place and the number of lectures.
Tsingua University, Beijing, China.
August 1993 - 3 lectures
Technical University Ilmenau, Germany.
April 1992 - 4 lectures
Inst. de Ciencias Matematicas de São Carlos, Brasil.
May 1988 - 7 lectures
Technical University Ilmenau, Germany.
September 1988 - 3 lectures
University of Nice, France.
October-December 1987 - 3 lectures
University of Heidelberg, Germany.
October-December 1986 - 5 lectures
Comenius University, Bratislava, Tsjechoslovakia.
April 1986 - 5 lectures
Michigan State University, East Lansing, USA.
February 1986 - 9 lectures
University of Heidelberg, Germany.
November 1985 - 3 lectures
University of Heidelberg, Germany.
October 1984 - 3 lectures
UCL Louvain-la-Neuve, Belgium.
January- February 1984 - 3 lectures
