Braid #102

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

Determinant: $$\frac{-t^{8} + 5t^{7} - 12t^{6} + 19t^{5} - 21t^{4} + 19t^{3} - 12t^{2} + 5t - 1}{t^{4}}$$ Signatures:

$-2$ $0$

Gael Collinet and Pierre Guillot, 2010.