Friday, August 15, 2014 — 3:30 PM EDT

A Survey on Multi-flows in Graphs and Matroids

Speaker: Bertrand Guenin
Affiliation: University of Waterloo
Room: Mathematics 3 (M3) 3103

Abstract: 

Wednesday, August 13, 2014 — 3:30 PM EDT

A Proof of Lehman's Theorem

Speaker: Bertrand Guenin
Affiliation: University of Waterloo
Room: Mathematics 3 (M3) 3103

Abstract: 

Lehman proved that if the set covering polyhedron has a fractional extreme point, then it has one with a very special structure. I will give a proof of this result and describe an algorithmic version of it.

Friday, August 8, 2014 — 3:30 PM EDT

The Potential Technique in Graph Coloring

Speaker: Luke Postle
Affiliation: University of Waterloo
Room: Mathematics 3 (M3) 3103

Abstract: 

We discuss recent advancements and applications of the

Friday, August 1, 2014 — 3:30 PM EDT

The Gindikin-Karpelevich Formula and Combinatorics of Crystals

Speaker: Ben Salisbury
Affiliation: Central Michigan University
Room: Mathematics 3 (M3) 3103

Abstract: 

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