Tutte seminar - Dan YoungerExport this event to calendar

Friday, May 11, 2012 — 3:30 PM to 4:30 PM EDT

On Tutte's 3-flow conjecture

Speaker: Dan Younger
Affiliation: University of Waterloo
Room: Mathematics & Computer Building (MC) 5158

Abstract:

An important element of Tutte's research legacy is his trio of k-flow conjectures. These assert that the famous results on k-coulouring planar maps (for k=3,4,5) hold true, in k-flow translation, for graphs that are nonplanar.

Bruce Richter and I have studied the 3-flow conjecture: specifically, its planar version. We have a new proof of Grötzsch's theorem. The method used, reducing the main configuration to the submodularity of cuts, is in the spirit of the conjecture. I will describe this proof.

(this talk is part of a series of talks dedicated to honouring the 10th anniversary of Bill Tutte's passing)

Location 
MC - Mathematics & Computer Building
5158
200 University Avenue West

Waterloo, ON N2L 3G1
Canada

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