Data:L10a121/Multivariable Alexander

[math]\displaystyle{ -v^2 u^4-3 v^3 u^3+5 v^2 u^3-3 v u^3-v^4 u^2+5 v^3 u^2-9 v^2 u^2+5 v u^2-u^2-3 v^3 u+5 v^2 u-3 v u-v^2 }[/math]