Data:L11a239/Multivariable Alexander

[math]\displaystyle{ -\frac{2 u^2 v^3-6 u^2 v^2+7 u^2 v-2 u^2+u v^4-7 u v^3+13 u v^2-7 u v+u-2 v^4+7 v^3-6 v^2+2 v}{u v^2} }[/math]