Data:L10a62/Multivariable Alexander

[math]\displaystyle{ \frac{u^2 v^4-2 u^2 v^3+2 u^2 v^2-2 u^2 v+u^2-2 u v^4+3 u v^3-3 u v^2+3 u v-2 u+v^4-2 v^3+2 v^2-2 v+1}{u v^2} }[/math]