From April 2011, I am an Associate Professor at ILLC (Institute for Logic, Language and Computation), University of Amsterdam, NL.
One of the leaders of the Amsterdam Dynamics Group, which organizes the LIRa seminar series.
Member of the Steering Group of DIEP (the Dutch Institute for Emergent Phenomena, d-iep.org), a large interdisciplinary collaboration project funded by the faculty of science and in partnership of with 4 other institutes.
Research Fellow of the Tsinghua-UvA Joint Research Centre for Logic.
Between 2001 and 2011, I was a tenured University Lecturer at Oxford University, in the Department of Computer Science.
Between 1998 and 2001, I was a post-doctoral researcher at CWI, (Dutch Center for Mathematics and Computer Science) & ILLC (Institute for Logic, Language and Computation), University of Amsterdam, NL
Between 1992 and 1993 I was a scientific researcher at Institute of Mathematics of the Romanian Academy, Bucharest, Romania.
Dov Gabbay Prize for Logic and Foundations 2025, for ``his contributions to Philosophical Logic”. November 27, 2025,
Ray Reiter Best Paper Award for research in AI, awarded at KR2022 (the 19th International Conference on Principles of Knowledge Representation and Reasoning), for the paper: “The Topology of Surprise”.
Workshop in celebration of A. Baltag’s Birthday, January 2022. Recording available at: Exploring Baltag’s Universe : Program, Abstracts and Recording – LIRa Seminar
Zheng Gang Fellowship. Awarded by Tsinghua University, Beijing 2024.
Awarded Research Fellow of the Tsinghua University – University of Amsterdam Joint Research Center for Logic from July 1st 2014 till present.
Best Paper Award at the conference on Advances in Modal Logic (AiML’98), Uppsala, Sweden 1998
Post-doctoral Research Fellowship. Awarded by NWO (Netherlands’ Organization for Scientific Research). 1998-2001.
Swayn Fellowship for Academic Excellence. Awarded by Indiana University. May 1998.
Fulbright Visiting Research Fellowship. Awarded by the Fulbright Foundation. 1993-1994.
Seed Funding Granr RPA Human(e) AI on `Responsible Artificial Agency: A Logical Perspective’. Co-PI, UvA, budget: 47.796 euro, 2021.
Recipient of Royal Dutch Academy (KNAW) Grant for the Akademie Colloquium on `Reasoning in Social Context’ (May-June 2018), Co-PI, Funding Agency KNAW, the Netherlands,
Main Project Leader, Marie Curie Grant WADOXA (2015-2017), employing one post-doctoral incoming researcher.
Main Project Leader, China-Exchange Grant on The Logical Dynamics of Information Exchange in Social Networks of the Netherlands Royal Academy, 2014-2016,
Regional Coordinator (for Netherlands) of the MESHS Grant ‘PROBATIVUS’, 2014, a partnership collaboration with the University of Lille.
Partner in the 2013 Argumentalis Project, a collaboration between the universities in Lille and Amsterdam, funded by `la Maison européenne des sciences de l’homme et al société (MESHS, France).
Visiting Research Grant. Awarded by NWO (Netherlands’ Organization for Scientific Research). September 2007-March 2008.
I obtained my Ph. D. in Mathematics in 1998 at IU Department of Mathematics, Indiana University; (USA), under the supervision of Jon Barwise.
I obtained my BS and MSc in Mathematics at University of Bucharest in 1989.