Combinatorics of Lie Type, a Conference in Honor of Loius Solomon, University of Wisconsin-Madison, June 16-22, 2000
Midwest Conference on Lie Algebras and Related Topics, University of Wisconsin-Milwaukee, May 5-6, 2001
Symmetric Functions 2001: Surveys of Developments and Perspectives, Newton Institute, Cambridge, UK, June 25-July 6, 2001
Representation Theory of Algebraic groups and Quantum Groups, Sophia University, Tokyo, August 1-10, 2001
Aspects of Symmetry, Banff, August 26-29, 2001
Joint British Mathematical and Applied Mathematical Colloquium, Mathematics Institute - University of Warwick, April 7-12, 2002
Enveloping Algebras and Algebraic Lie Representations, Mathematisches Forschungsinstitut Oberwolfach, Germany, April 28 - May 4, 2002
Workshop on Computational Lie Theory, Centre de recherches mathématiques, Université de Montréal, Canada, May 27 - June 7, 2002
Current trends in Commutative Algebra, Levico-Terme, Italy, June 17-21, 2002
Geometric Aspects of Representation Theory, University of Sydney, Australia, July 21-26, 2002
Commutative Algebra and Geometry, Banff International Research Station, Canada, March 29 - April 3, 2003
Special Session on Combinatorial Commutative Algebra and Algebraic Geometry, AMS Meeting #987, San Francisco, CA, May 3-4, 2003
Géométrie et théorie des représentations, Université de Genève, Switzerland, June 9 - 20, 2003
Integer points in polyhedra. Geometry, Number Theory, Algebra, Optimization, Snowbird, Utah, July 12-18, 2003
CDM 2003: Current Developments in Mathematics, Harvard University, Cambridge, November 21-22, 2003
Algebraic Groups, Mathematisches Forschungsinstitut Oberwolfach, Germany, February 29 - March 6, 2004
Geometric Methods in Algebra and Representation Theory, University of Warwick, UK, March 29 - April 3, 2004
Representation theory, dynamical systems, and asymptotic combinatorics, St Petersburg, Russia, June 8-13, 2004
2004 International Math conference, Chonbuk National University, Chonju, Korea, August 4-6, 2004
XI International Conference on Representations of Algebras and Workshop, Queretaro and Patzcuaro, Mexico, August 11-20, 2004
Braid Groups, Clusters and Free Probability, American Institute of Mathematics, Palo Alto, California, January 10-14, 2005
Perspectives in Mathematics: Algebras and Representations. Conference dedicated to the 60th birthday of Claus Michael Ringel, Bielefeld, Germany, February 4-5, 2005
Representation Theory of Finite-Dimensional Algebras, Mathematisches Forschungsinstitut Oberwolfach, Germany, February 6 - 12, 2005
Enveloping Algebras and Geometric Representation Theory, Mathematisches Forschungsinstitut Oberwolfach, Germany, March 13 - 19, 2005
DEA course "Cluster algebras" CIRM, Luminy, France, May 9-13, 2005.
Representation theory, geometry and automorphic forms. Conference dedicated to the 60th birthday of Joseph Bernstein, Tel Aviv, Israel, June 5-9, 2005.
Special session on Algebraic and Geometric Combinatorics, AMS Meeting #1009, Annandale-on-Hudson, NY, October 8-9, 2005.
London Mathematical Society Regional Meeting and Workshop on Teichmüller Theory and Cluster Algebras, University of Leicester, UK, May 15-18, 2006.
Workshop on Cluster Algebras and Cluster Tilted Algebras, University of Bielefeld, Germany, May 25-27, 2006.
Geometry and Representation Theory Conference in honor of the 60th birthday of George Lusztig, Massachusetts Institute of Technology, May 30-June 3, 2006.
NSF/CBMS conference on Cluster Algebras and Applications, North Carolina State University, Raleigh, June 13-17, 2006.
Symmetries and Integrability of Difference Equations (SIDE) VII, Melbourne, Australia, July 10-14, 2006.
North American Workshop on Tropical Geometry, BIRS, Banff, Canada, March 4-9, 2007.
Frontiers in Mathematics lecture series, Texas A&M University, March 19-23, 2007.
Mutations for Quivers and Their Representations, GRASP lecture series, University of Texas at Austin, March 23, 2007.
Algebraic Groups, Mathematisches Forschungsinstitut Oberwolfach, Germany, April 22-28, 2007.
Representations, Cohomology and Support Spaces, University of Bielefeld, Germany, April 29-May 1, 2007.
Perspectives in Auslander-Reiten Theory. On the occasion of the 65th birthday of Idun Reiten, Trondheim, Norway, May 10-12, 2007.
Workshop on Algebraic and Geometric Representation Theory, University of Aarhus, Denmark, June 25-30, 2007.
XII International Conference on Representations of Algebras and Workshop, Torun, Poland, August 15-24, 2007.
LieGrits Workshop, Mathematical Institute, University of Oxford, January 3-8, 2008.
Topics in Combinatorial Representation Theory, MSRI, Berkeley, March 17-21, 2008. Video of my talk there.
The 12th Midrasha Mathematicae: Higher Teichmüller theory, clusters, and quantization, Einstein Institute of Mathematics, Hebrew University of Jerusalem, May 11-19, 2008.
Antalya Algebra Days X, Antalya, Turkey, May 28 - June 1, 2008.
Colloquium of Non Commutative Algebra, Université de Sherbrooke, Canada, June 9-14, 2008.
International Conference and Workshop on Cluster Algebras and Related Topics, Workshop: Morelia, Mexico, December 8-13, 2008; Conference: Mexico City, Mexico, December 15-20, 2008.
The Abel Symposium 2009, Combinatorial aspects of commutative algebra and algebraic geometry, Voss, Norway, June 1–4, 2009.
London Mathematical Society Durham Symposium, Combinatorial Geometric Structures in Representation Theory, Durham, UK, July 6–16, 2009.
2010 Canadian Mathematical Society Summer Meeting, University of New Brunswick, Fredricton, Canada, June 4-6, 2010.
Teichmüller Theory and its Interactions in Mathematics and Physics, Centre de Recerca Matemàtica, Bellaterra, Spain, June 28 - July 3, 2010.