Braid #25

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

Determinant: $$\frac{-2t^{4} + 8t^{3} - 11t^{2} + 8t - 2}{t^{2}}$$ Signatures:

$-2$ $0$

Gael Collinet and Pierre Guillot, 2010.