• The 25th International Conference on Operator Theory, June 30 - July 5, 2014, University of the West, Timisoara, Romania.
• Géométrie et dynamiques des espaces de Finsler, June 16-20, 2014, Centre International de Rencontres Mathématiques, Luminy, Marseille, France.
• Segunda Escuela sobre Análisis Funcional y Geometría, November 18-22, 2013, Instituto Argentino de Matemática "Alberto P. Calderón" (IAM-CONICET), Buenos Aires, Argentina.
• Groups, Nonassociative Algebras and Combinatorics, September 30-October 4, 2013, Centre International de Rencontres Mathématiques, Luminy, Marseille, France.
• Representations of Lie Groups and Supergroups, March 10-16, 2013, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, Germany.
• Seminar on Harmonic Analysis, September 21-22, 2012, Institute of Mathematics "Simion Stoilow" of the Romanian Academy, Bucharest, Romania.
• Harmonic Analysis, Convolution Algebras, and Special Functions, September 10-14, 2012, Technische Universität München, Campus Garching near München, Germany.
• The 24th International Conference on Operator Theory, July 2-7, 2012, University of the West, Timisoara, Romania.
• XXXI Workshop on Geometric Methods in Physics, June 24-30, 2012, Białowieża, Poland.
• Branching problems for unitary representations, July 25-29, 2011, Max-Plank-Institut für Mathematik, Bonn, Germany. ( Here is the workshop website hosted by the American Institute of Mathematics.)
• Representations of Lie Groups and Supergroups, March 10-16, 2013, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, Germany.
• Infinite Dimensional Lie Theory, November 14-20, 2010, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, Germany.
• Representations of Lie Groups and Algebraic Groups, September 14-17, 2010, Friedrich-Alexander-Unversität Erlangen-Nürnberg, Department Mathematik, Emmy-Noether-Zentrum , Erlangen, Germany.
• XXIX Workshop on Geometric Methods in Physics, June 27-July 3, 2010, Białowieża, Poland.
• Analiza Functionala si Teoria Operatorilor, February 6, 2010, University of Bucharest - Faculty of Mathematics and Computer Science, Bucharest, Romania.
• XXVIII Workshop on Geometric Methods in Physics, June 28-July 4, 2009, Białowieża, Poland.
• The 60th Anniversary of The Institute of Mathematics of the Romanian Academy, June 25 - 27, 2009, Institute of Mathematics "Simion Stoilow" of the Romanian Academy, Bucharest, Romania.
• Workshop on Infinite-Dimensional Lie Groups and Related Functional Analysis, November 6-8, 2008, Universität Paderborn - Institut für Mathematik, Paderborn, Germany.
• Workshop on "Operator Algebras and Conformal Field Theory", September 8-19, 2008, The Erwin Schrödinger International Institute for Mathematical Physics, Vienna, Austria.
• Research group "Banach Lie-Poisson spaces and integrable systems", August 5-10, 2008, The Mathematical Research and Conference Center of the Institute of Mathematics of the Polish Academy of Sciences, Bedlewo, Poland.
• Seminar Sophus Lie , July 4-5, 2008, Babes-Bolyai University, Cluj-Napoca, Romania.
• Conference in Analysis and Geometry in Several Complex Variables, June 24-28, 2008, Institute of Mathematics "Simion Stoilow" of the Romanian Academy, Bucharest, Romania.
• Infinite Dimensional Lie Theory, December 10-16, 2006, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, Germany.
• The 21st International Conference on Operator Theory, June 29-July 4, 2006, University of the West, Timisoara, Romania.
• 6th Operator Algebras International Conference: Operator Algebras and Mathematical Physics-3, August 10-17, 2005, Institute of Mathematics "Simion Stoilow" of the Romanian Academy, Bucharest, Romania.
• Summer School and Conference on Poisson Geometry, July 4-22, 2005, The Abdus Salam International Centre for Theoretical Physics, Trieste, Italy.
• The 20th International Conference on Operator Theory, June 30-July 5, 2004, University of the West, Timisoara, Romania.
• Finite and Infinite Dimensional Complex Geometry and Representation Theory, February 1-7, 2004, Mathematisches Forschungsinstitut Oberwolfach, Oberwolfach, Germany.
• The 2nd Operator Algebras and Mathematical Physics Conference, June 26-July 4, 2003, Sinaia, Romania.
• Poisson Geometry, Deformation Quantisation and Group Representations, July 13-22, 2003, Université Libre de Bruxelles, Brussels, Belgium.
• The 19th International Conference on Operator Theory, June 27-July 2, 2002, University of the West, Timisoara, Romania.
• Seminar Sophus Lie, December 7-8, 2001, Humboldt-Universit俽t zu Berlin, Berlin, Germany.
• Seminar Sophus Lie: "Workshop on Lie Groups and Lie Algebras", September 4-15, 2000, The Mathematical Research and Conference Center of the Institute of Mathematics of the Polish Academy of Sciences, Bedlewo, Poland.
• The 18th International Conference on Operator Theory, June 27-July 1, 2000, University of the West, Timisoara, Romania.
• The 17th International Conference on Operator Theory, June 23-26, 1998, University of the West, Timisoara, Romania.
• The 16th International Conference on Operator Theory, July 2-10, 1996, University of the West, Timisoara, Romania.