8th French Combinatorial Conference

U. Paris Sud, France - June-July 2010

also given at

SIAM Discrete Mathematics Conference

Austin, TX - June 2010

Institute for Pure and Applied Mathematics at UCLA

Lake Arrowhead, CA - December 2009

also given at

University of Vermont / St. Michael's College Discrete Mathematics Seminar

Burlington, VT - March 2010

22nd British Combinatorial Conference

St. Andrew's, Scotland - July 2009

Canadian Algorithmic and Discrete Mathematics Conference

Montreal, Canada - May 2009

Dartmouth Combinatorics Seminar

Hanover, NH - February 2010

Arizona State University Discrete Mathematics Seminar

Tempe, AZ - March 2009

also given at

University of Vermont / St. Michael's College Discrete Mathematics Seminar

Burlington, VT - November 2008

Discrete Mathematics Days of Northeast

Burlington, VT - June 2009

an earlier version given [pdf] [abstract]

Dartmouth Combinatorics Seminar

Hanover, NH - October 2008

Governor's Institute in Mathematical Sciences

U. Vermont - June, 2008

AMS-MAA Joint Meetings

San Diego, CA - January, 2008

21st British Combinatorics Conference

University of Reading, UK - July, 2007

20th Comberland Conference

Emory University, Atlanta, GA - May, 2007

University of Vermont Mathematics Colloquium

Burlington, VT - April, 2007

Middlebury College Mathematics Seminar

Middlebury, VT - March, 2007

University of Colorado, Denver, Discrete Mathematics Seminar

Denver - September, 2006

Horizon of Combinatorics (EMS Summer School)

Lake Balaton, Hungary - July 2006

6th Czech-Slovak International Symposium on Combinatorics, Graph Theory, Algorithms and Applications

Prague, Czech Republic - July 2006

SIAM Conference on Discrete Mathematics

Victoria, Canada - June 2006

UVM / St. Michael's Discrete Mathematics Seminar

Burlington, VT - October 2005

Middlebury College Mathematics Department Seminar

Middlebury, VT - October 2005

WaterMellon Conference on Combinatorics

Carnegie Mellon University, Pittsburgh, PA - May 2005