- Auslander Lectures, Woods Hole, MA, May 2014.
- Oberwolfach, Feb. 2014.
- University of Michigan, Jan. 2014.
#### 2013

- Geometric Methods in Representation Theory, Columbia, Missouri, Nov. 2013.
- ALGECOM, Chicago, November 2013.
- XXV rencontre de théorie des représentations des algèbres, Sherbrooke, Québec, Sept. 2013.
- Gelfand Conference, Boston, August 2013.
- Bielefeld University, Germany, June-July, 2013.
- Zelevinsky birthday conference, Northeastern University, April 2013.
- Auslander lectures, Woods Hole, MA, April 2013.
- University of Iowa, Feb. 2013.
- Introductory Workshop: Noncommutative Algebraic Geometry and Representation Theory, MSRI, January 2013
- Joint Mathematical Meetings (organizing special session on Geometric Complexity Theory), San Diego, CA, January 2013
#### 2012

- Conference on Geometric Methods in Representation Theory, University of Missouri, Nov. 2012.
- MSRI Joint Introductory Workshop: Cluster Algebras and Commutative Algebra, Aug-Sept 2012
- ICRA XV, Bielefeld, Germany, August 2012
- MRC on Geometric Complexity Theory, Snowbird, Utah, June 2012
- CUNY Representation Theory seminar, May 2012
- Auslander conference, Woods Hole, April 2012.
- University of Connecticut SIGMA seminar, March 2012.
- University of Missouri Algebra seminar, March 2012.
- Princeton University Algebraic Geometry Seminar, Feb. 2012.
- Joint Meetings in Boston, briefly, Jan. 2012.
#### 2011

- XXIIIe rencontre de théorie des représentations des algèbres, Sherbrooke, Québec, Sept. 2011.
- AMS Special Session in Noncommutative Algebra, Wake Forest University, Fall 2011.
- Cluster Algebras and Statistical Physics, ICERM, Providence, RI, August 2011. (I only made it Thursday and Friday.)
- Mathematical Aspects of P versus NP and its Variants, ICERM, Providence, RI, August 2011. (I was just there one day.)
- Maurice Auslander Lectures and International Conference, Woods Hole, Massachussets, April 2011.
- AMS Special Session in Representations of Algebras, University of Iowa, Spring 2011.
- Tufts University, Mathematics Department Colloquium, Feb. 25, 2011.
#### 2010

- AMS Special Session in Representations of Finite Dimensional Algebras, Syracuse University, Fall 2010.
- AGNES at UConn, September 2010.
- Syracuse University two week visit to work with Dan Zacharia, summer 2010.
- Maurice Auslander Lectures and International Conference, Woods Hole, Massachussets, April 2010.
- UMass Amherst Representation Theory seminar, April 12, 2010.
- AGNES at UMass Amherst April 9-11, 2010.
- University of Kansas Algebra seminar, March 23, 2010.
- Northeastern University GASC seminar, Feb. 1, 2010.
#### 2009

- AMS Special Session on Representations of Finite Dimensional Algebras, Riverside, California, Nov. 2009.
- XXIe rencontre de théorie des représentations des algèbres, Sherbrooke, Québec, Oct. 2009.
- Maurice Auslander Lectures and International Conference, Woods Hole, Massachussets, April 2009.
- AMS Special Session on Algebra, Geometry and Combinatorics, University of Illinois, March 2009.
#### 2008 and before

- Depaul University, Algebra seminar, Sept. 17, 2008.
- ICRA XIII, August 2008, São Paulo, Brazil.
- Summer School on Algebraic Geometry and Quiver Representations, Grenoble, France June 2008.
- Maurice Auslander Lectures and International Conference, Woods Hole, Massachussets, April 2008.
- Topics in Combinatorial Representation Theory, March 2008, MSRI.
- ICRA XII, July 2007, Toruń, Poland.
- Universidad Católica de Chile, Complex Geometry seminar, June 2007.
- Symmetry and Spaces; A Conference on the Occasion of Gerry Schwarz's 60th Birthday. The Fields Institute, Toronto, July 2006.