PROFESSIONAL ACTIVITY

• Vice-head, Graduate Comitte, Instituo de Matemática e Estatística, Universidade de São Paulo, July 1978 - 1980.
• Head, Department of Mathematics, Instituto de Matemática e Estatística, Universidade de São Paulo, July 1980 - July 1984.
• Chairman, IV Brazilian School of Algebra, July 1976.
• Chairman, XI Brazilian School of Algebra, July 1990.
• Reviewer for Mathematical Reviews.
• Reviewer for Zentralblatt für Mathematik.
• Referee for several journals.
• Scientific consultant for the Conselho de Desenvolvimento Científico e Tecnológico -CNPq.
• Scientific consultant for the Fundação Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES).
• Scientific consultant for theFundação de Amparo à Pesquisa do Estado de São Paulo - FAPESP.
• Member of the Editorial Board of the journal ``Resenhas do Instituto de Matemática e Estatística da Universidade de São Paulo''.
• Associate Editor of the journal CUBO MATEMATICA EDUCACIONAL, of the Universidad de la Frontera, Temuco, Chile.
• Vice-director, Instituo de Matemática e Estatística, Universidade de São Paulo, from april 1994 to april 1998.
• Chairman, meeting on ``Group Rings and Related Topics'', IMEUSP, August, 1995.
• Editor of n. 3, vol. 2, of Resenhas do IMEUSP, dedicated to the proceedings of the meeting on ``Group Rings and Related Topics''.
• Member, executive comitte of the Center for the History of Science of USP.
• Chairman, meeting on ``Group Rings and Related Topics'', IMEUSP, February, 1998.
• Member, external evaluating comittee for the Instituto de Matemática da Universidade Federal do Rio de Janeiro, March, 1998.
• President, graduate comittee of the Center for the History of Science of USP.
• Resarcher, level 1A, for CNPq.