For a given Knot in , choose a Seifert Surface in for and a
bicollar
in . If
is represented by a 1-cycle in ,
let denote the homology cycle carried by in the bicollar. Similarly, let denote .
The function
defined by
See also Seifert Matrix
References
Rolfsen, D. Knots and Links. Wilmington, DE: Publish or Perish Press, pp. 200-201, 1976.