- Mathematical Congress of the Americas 2017, special session on Stringy Geometry, Montreal,
July 2017

- Conference, Cyclic Homology, IMPAN Warsaw, Poland, October 17-21, 2016

- University of Western Ontario, Noncommutative Geometry
Workshop,
June 11, 2015

- University of Western Ontario, Colloquium, November 12, 2014

- Washington University, St. Louis, AMS Sectional Meeting,
Special
Session on Groupoids
in Analysis and Geometry, October 19, 2013

- University of Western Ontario, Algebra Seminar, April 12,
2013

- Wilfrid Laurier University, Colloquium, April 29, 2011

- Southern Ontario Groups and Geometry Meeting, Fields
Institute,
April 1–2, 2011

- University of Waterloo, Geometry Seminar, November 24, 2010

- University of Notre Dame, Lie Theory Seminar, September 2,
2010

- University of Windsor, Colloquium, August 18, 2010

- Workshop on Effective methods in p-adic cohomology,
Mathematical
Institute, University
of Oxford, March 15–19, 2010

- University of Waterloo, Colloquium, March 8, 2010

- University of Bonn, Representation Theory Seminar, February
5,
2010

- University of Utah, Algebraic Geometry Seminar, January 12,
2010