Let's begin with the most recent (i.e., the most recent that I've bothered to upload):

- PDF file "Linear programming: It's not programming, and now it's not even linear!", given to faculty at the 2011 WPI Math Meet, October 19, 2011
- "Linear programming bounds and partially ordered sets" Given at the 2011 BIRS Workshop on Algebraic Graph Theory, April 26, 2011, Banff Alberta.
- "Linked systems of designs" Given at the Special Session on Codes and Designs , November 7, 2010, AMS Fall 2010 Sectional Meeting, University of Richmond, Richmond, VA.
- PDF file (2.6M)

- "Hey! You can't do that with my code!" Given at the 12 Rocky Mountain Discrete Math Day, June 20, 2009 at UC Denver.
- PDF file (4.8M)

- "An ideal associated to any cometric association scheme". Given May 19, 2009
at IPM 20 -- Combinatorics 2009, Tehran, Iran.
- PDF file (981K)

- "Cometric association schemes". Given August 21, 2008 at "Geometric and Algebraic
Combinatorics 4", Oisterwijk, The Netherlands.
- PowerPoint file (23.2M)
- PDF file with extra material (408K)

- "Real mutually unbiased bases and association schemes". Given June 16, 2008
at the 2008 SIAM Conference on Discrete Mathematics, Burlington, VT.
- PDF file (427K)

- "The Story of
*(T,M,S)*-Nets". Given May 23, 2008 at the Ontario Combinatorics Workshop, Waterloo, Ontario.- PowerPoint file (12.8M)

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