Data:L11a181/Multivariable Alexander

[math]\displaystyle{ \frac{2 u^2 v^4-7 u^2 v^3+8 u^2 v^2-3 u^2 v-2 u v^4+9 u v^3-15 u v^2+9 u v-2 u-3 v^3+8 v^2-7 v+2}{u v^2} }[/math]