Workshop on Embedding Problems in Banach Spaces and Group Theory. Mathematical Sciences Research Institute, Berkeley, California, October 19, 2011.
Oberwolfach Workshop on Noncommutative Geometry, September 13, Germany, 2011.
Principal speaker (3 lectures), Summer School on Operator Theory and Operator Algebras, Dalian, China, August 1-3, 2011.
Principal speaker (4 lectures), Summer School on Manifolds and Groups, Muenster, Germany, July 18-21, 2011.
Geometric Topology, Dubrovnik VII, June 28, 2011.
Geometric Group Theory Workshop, The Heilbronn Institute for Mathematical Research, University of Bristol, United Kingdom, June 23, 2011.
Principal speaker (4 lectures), Summer School on Noncommutative Geometry, Shanghai, China, June 1-10, 2011.
Colloquium, Georgia Institute of Technology, March 17, 2011.
Conference on Geometry and Analysis, Kyoto, Japan, March 9, 2011.
Workshop on Embeddings, Newton Institute, Cambridge, United Kingdom, January 13, 2011.
Lecture series (4 lectures), Baum-Connes Conjecture and Oka's Principle, Paris, France, November 15-19, 2010.
Nest Festival, University of Copenhagen, Denmark, September 2, 2010.
Colloquium, University of Tennessee, August 27, 2010.
Summer School around the Baum-Connes Conjecture, Bloomington, August 4, 2010.
Plenary Lecture, Fifth Pacific Rim Conference of Mathematics, Stanford University, June 29, 2010.
Conference on Applied Anaysis, Shanghai, June 4, 2010.
Colloquium, University of Indiana, Blooomington, April 23, 2010.
Lecture Series (10 lectures), University of Puerto Rico, February 5, 12, 19, 22 and 26, 2010.
Colloquium, Washington University, St Louis, January 28, 2010.
Conference on Analysis and Geometry, Kyoto University, Japan, January 14, 2010.
Distinguished Visiting Professsor Lecture Series, Australian National University, December 10 and 15, 2009.
Wabash Analysis Conference, October 3, 2009.
Colloquium, Washington University, St Louis, September 17, 2009.
Conference on Noncommutative Geometric Methods in Global Analysis, Bonn, Germany, July 3, 2009.
International Conference on Operator Theory and Operator Algebras, Suzhou, China, June 20, 2009.
Oberwolfach Conference "Perspective on Manifolds", Germany, May 24, 2009.
Colloquium, Muenster University, Germany, May 20, 2009.
Geometry and Topology Seminar, Columbia University, April 24, 2009.
Main speaker (two lectures), Workshop on "Groups, Embeddings and Applications", Hawaii, March 21 and 22, 2009.
Operator Algebra Seminar, Paris, March 5, 2009.
Lectures Series (five lectures), Universidad Complutense de Madrid, November 24-28, 2008.
Colloquium, Washington University, St. Louis, October 30, 2008.
Colloquium, Texas A \& M University, October 23, 2008.
Workshop on Noncommutative Geometry (in honor of Joachim Cuntz’s 60th birthday), Muenster, Germany, September 26, 2008.
Plenary Lecture, International Congress of Chinese Mathematicians, Hangzhou, China, December 21, 2007.
Geometry Festival, College Park, April 27-29, 2007.
Noncommutative Geometry Conference in honor of Alain Connes, Paris, April 4, 2007.
Geometric Linearization of Graphs and Groups, Lausanne, Switzerland, January 22, 2007.
International Conference on Geometry, Topology and Their Interations
Invited Address, International Congress of Mathematicians, August, 2006, Madrid, Spain.
Colloquium, University of Wisconsin, Madison, November 4, 2005.
Wabash Modern Analysis Conference, September 17, 2005.
Asymptotic and Probabilistic Methods in Geometric Group Theory, Geneva, June 23, 2005.
Geometric and Functional Analysis Seminar, Penn State University, March 14, 2005.
Frontier in Mathematics Lecture Series (three lectures), Texas A&M University, November 30, December 2 and 3, 2004.
G3 Geometric Group Theory Conference, Destin, Florida, November 11, 2004.
Noncommutative Geometry Conference, Oberwolfach, Germany, Sept. 12, 2004.
Geometric and Functional Analysis, Kyoto University, Japan, August 11-14, 2004.
Noncommutative Geometry in Mathematics and Physics, CIRM, Marseille, France, February 9-11, 2004.
BIRS Conference on the Novikov and Baum-Connes conjectures, Banff, Canada, June 4, 2003.
The 23rd Annual Great Plains Operator Theory Symposium, University of Illinois, Urbana-Champaign, May 29, 2003.
BIRS Conference on Noncommutative Geometry, Banff, Canada, April 6, 2003.
First Symposium of Japan Association for Mathematical Sciences, Tohuku University, Sendai, Japan, December 20, 2002.
Summer School on the Baum-Connes conjecture, Goettingen University, Germany, May 21-24, 2002.
Topology Festival, Cornell University, May 4, 2002.
Oberwolfach Conference on Noncommutative Geometry, Germany, March 26, 2002.
Wasatch Topology Conference, University of Utah, December 15, 2001.
Conference on Quantization and Noncommutative Geometry, Mathematical Sciences Research Institute, Berekely, California, April 24, 2001.
Southeastern Analysis Meeting, Athens, Georgia, March 2-3, 2001.
Topology Workshop, University of Chicago, November 14, 2000.
Symposium on Geometric Structures in Mathematics, June 30, 2000, Muenster, Germany.
Bounded Topology and Geometric Group Theory Conference, May 30, 2000, Muenster, Germany.
Noncommutative Geometry Conference, March 27, 2000, Mathematisches Forschungsintitut Oberwolfach, Germany.
Invited Address, American Mathematical Society Meeting, October 3, 1999, Providence, Rhode Island.
Cyclic Homology Symposium, Canadian Mathematical Society, December 8, 1996, London, Canada.
