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- Member, Advisory Panel, Journal of Physics A: Mathematical and General
- Plenary Speaker, The 34th International Colloquium on Group Theoretical Methods in Physics (ICGTMP), Strasbourg, France, 18-20 July 2022
- Invited Speaker, Conference on Dunkl operators, special functions and harmonic analysis, University of Paderborn, August 8-12, 2016
- Guest Editor, Special Issue on Symmetry in Orthogonal Polynomials, in Symmetry , Feb. 2016
- Member, Editorial Board, Symmetry
- Plenary Speaker, 13th International Symposium on Orthogonal Polynomials, Special Functions and Applications, June 1-5, 2015, NIST, Gaithersburg, MD
- Invited Speaker and Member of International Advisory Committee, Exact Solvability and Symmetry Avatars, conference on the occasion of Luc Vinet's 60th birthday, CRM Montréal, August 25-29, 2014
- Guest Editor, SIGMA special issue on Dunkl operators and related topics, 2007-2008
- Invited Speaker, Infinite dimensional harmonic analysis IV, Sept. 10-15, 2007, Tokyo, DFG-JSPS Joint Seminar
- Plenary Speaker, Harmonic Analysis, Convolution Algebras, and Special Functions , Sept. 10-14, 2012, TU Munich
- Member, Scientific Committee, International Symposium on Orthogonal Polynomials, Special Functions and Applications, OPSFA 12, Tunisia, Mar. 25-29, 2013