Data:L11n228/Multivariable Alexander

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