Topology Seminar: Briaid orderings and knot genus

  • Date: 03/03/2010
Lecturer(s):
Tetsuya Ito (University of Tokyo)
Location: 

University of British Columbia

Description: 

The braid group has a left-invariant total ordering, called the Dehornoy ordering. In this talk, I will introduce the Dehornoy floor of braids, which measures a complexity of braids by using the Dehornoy ordering. I will give a new lower bound of knot genus by using the Dehornoy floor and also discuss other applications of the Dehornoy floor to knot theory.

Schedule: 

3:00 - 4:00pm, WMAX 110.

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