Past VCCs
June 30, 2020
Cheryl Praeger (University of Western Australia) "Diagonal Structures and Permutation Groups"
April 7, 2020
Maria Chudnovsky (Princeton) "Recent Progress on the Erdos-Hajnal Conjecture"
February 18, 2020
Louis H. Kauffman (University of Illinois) "Trivalent Graphs, Perfect Matchings and Virtual Knot Theory"
January 21, 2020
Matjaž Konvalinka (Ljubljana) "The First Bijective Proof of the ASM Theorem"
December 3, 2019
Sergi Elizalde (Dartmouth) "Consecutive Patterns in Permutations and Inversion Sequences"
November 19, 2019
Heide Gluesing-Luerssen (Kentucky) "Rank-Metric Codes for Random Network Coding"
October 15, 2019
Chris Godsil (Waterloo) "Quantum Colourings and Derangements"
April 25, 2019
Peter Cameron (St Andrews) "Four Precious Jewels"
March 21, 2019
Jon Kleinberg (Cornell) "Graph-Theoretic Models of Behavioral Phenomena"
November 14, 2018
Vic Reiner (University of Minnesota) "Cyclic Sieving: Old and New"
October 25, 2018
Vašek Chvátal, "Points and Lines" [Viewing parties included: Brown University, Dalhousie University, Dartmouth College, Rensselaer Polytechnic Institute, Rutgers, SUNY Plattsburgh, University of Massachusetts, University of Vermont, Worcester Polytechnic Institute. A total of 50 screens signed in to view the meeting, including individuals in Connecticut, Massachusetts, Michigan, New York, Pennsylvania, Texas, Vermont, Ontario, Quebec, Germany, China and Taiwan. A conservative estimate is 70+ viewers.]
April 20, 2018
Jessica Striker (North Dakota State University) "Local Actions Create Global Change"
March 16, 2018
Joanna Ellis-Monaghan (St. Michael's College) "New Dualities from Old: Generating Geometric, Petrie, and Wilson Dualities and Trialities of Ribbon Graphs"
William J. Martin (Worcester Polytechnic Institute) "Ideals of Combinatorial Designs"