Notes for AKT-090917-2/0:11:52

Cousins of Jones skein relation: Conway-Alexandra polynomial [math]\displaystyle{ C \in \mathbb{Z}[z] }[/math] can be constructed inductively by the relations

1.[math]\displaystyle{ C( }[/math]"overcrossing"[math]\displaystyle{ )-C( }[/math]"undercrossing"[math]\displaystyle{ ) = z * C( }[/math] "vertical smoothing"[math]\displaystyle{ ) }[/math]

2.[math]\displaystyle{ C( k }[/math] disjoint circles [math]\displaystyle{ ) = 1 }[/math] if [math]\displaystyle{ k=1 }[/math] and [math]\displaystyle{ 0 }[/math] 0.w.