Data:L10a130/Multivariable Alexander

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