Braid #69

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

Determinant: $$\frac{5t^{4} - 14t^{3} + 19t^{2} - 14t + 5}{t^{2}}$$ Signatures:

$-4$ $-2$ $0$

Gael Collinet and Pierre Guillot, 2010.