Data:L11a227/Multivariable Alexander

[math]\displaystyle{ -\frac{u^2 v^4-5 u^2 v^3+8 u^2 v^2-3 u^2 v-2 u v^4+10 u v^3-15 u v^2+10 u v-2 u-3 v^3+8 v^2-5 v+1}{u v^2} }[/math]