Braid #90

Braid group element: $\sigma_{1}^{4} \sigma_{2}^{-1} \sigma_{1}^{2} \sigma_{2}^{-1} \sigma_{1}^{1} \sigma_{2}^{-1}\in B_{3}$
Plot:

Determinant: $$\frac{t^{8} - 4t^{7} + 8t^{6} - 10t^{5} + 11t^{4} - 10t^{3} + 8t^{2} - 4t + 1}{t^{4}}$$ Signatures:

$-4$ $-2$ $0$

Gael Collinet and Pierre Guillot, 2010.