Data:L10a116/Multivariable Alexander

[math]\displaystyle{ \frac{u^4 \left(-v^2\right)-2 u^3 v^3+3 u^3 v^2-2 u^3 v-u^2 v^4+3 u^2 v^3-5 u^2 v^2+3 u^2 v-u^2-2 u v^3+3 u v^2-2 u v-v^2}{u^2 v^2} }[/math]