Data:L11n311/Multivariable Alexander

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