Data:L11a367/Multivariable Alexander

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