Data:L11a420/Multivariable Alexander

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