Lectured in Europe, Japan, New Zealand, and North-America

Invited Speaker (selection): Lecture Series "Collegium Logicum", Kurt Goedel Society, University of Technology, Vienna, Austria, 1995. "The Foundational Debate. Complexity and Constructivity in Mathematics and Physics", Vienna, Austria, September, 1994. Symposium "Important Results and Trends in Theoretical Computer Science", Graz, Austria, 1994, Schloss Dagstuhl. Seminar on "Structure on Complexity", Dagstuhl, Saarbruecken, Germany, 1994. ROSYCS'93, Iasi, Romania, 1993. Conference "Developments in Language Theory", The University of Turku, Finland, 1993, Seminar on "Computability and Complexity in Analysis", Dagstuhl, Saarbruecken, Germany, 1997

Invited speaker for the seminar "Order, Complexity and Beauty", a core part of the Project "Third Culture Copenhagen" organized by the Danish Mindship Foundation, in celebrating Copenhagen Cultural Capital of Europe (July-August,1996). Click here for some papers relevant for this seminar. Click here to get some pictures

EATCS Bulletin Regular Contributor

Contributor to Routledge Encyclopedia of Philosophy

Co-organiser of (selection):

• CCF'99 The Workshop CCF'99 (Computability, Complexity, and Fuzziness), Galatzi, Romania, August 1999
• DMTCS'99 The Second Conference of the Centre for Discrete Mathematics and Theoretical Computer Science, Auckland, New Zealand, January 1999
• UMC'98 The First International Conference on UNCONVENTIONAL MODELS OF COMPUTATION, CDMTCS, Auckland, New Zealand, January 1998
• DMTCS96, The First Conference of the Centre for Discrete Mathematics and Theoretical Computer Science, Auckland, New Zealand, December 1996
• The Summer School Chaitin Complexity and Applications, Black Sea University, Mangalia, Romania, July 1995
• The Symposium Salodays in Auckland, The University of Auckland, Auckland, New Zealand, 1994
• The Conference Does God Play Dice?, The University of Auckland, Auckland, New Zealand, 1993
• Symposium SALODAYS in Theoretical Computer Science, Bucharest University, Bucharest, Romania, 1992
• The Workshop There Are Only 3000 Days Before the Year 2000, Romanian Academy, Bucharest, Romania, 1991
• The Workshop on Mathematics and Computer Science Education for the 21th Century, Romanian Academy and CEPES-UNESCO, Bucharest, Romania, 1990
• The Workshop How to Cope with Complexity, Romanian Academy, Bucharest, Romania, 1988
• The Symposium on Human Needs (Project GPID), UNU, Tokyo and CEPES-UNESCO, Bucharest, Romania, 1980

Member PC (selection): ICALP'95, DMTCS'96, CATS'97, ACSC'97, 'Internet as a Vehicle for Teaching', 1997, UMC'98, CATS'98, Randomized Algorithms, and Molecular Computing, Satellite Workshops to MFCS'98, DMTCS'99-CATS'99, , FCT'99, CCF'99, AMAST'2000, Third International Colloquium on Words, Languages and Combinatorics, 2000, UMC2K.

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