New enhancements of the Birack Counting Invariant

02/25/2014 - 12:15pm
02/25/2014 - 1:10pm
Sam Nelson (Claremont McKenna College)

Biracks are algebraic structures with axioms derived from the framed Reidemeister moves. Associated to a finite birack is an integer-valued invariant of knots and links known as the birack counting invariant. An enhancement of the counting invariant is a stronger and more sensitive invariant which determines the counting invariant, e.g. a polynomial invariant which evaluates to the counting invariant at 1. In this talk we will see some new enhancements of the birack counting invariant under development in Claremont.

Mudd Science Library 126 at Pomona College