Abstract
We prove the existence of an algorithm that solves the reducibility problem in braid groups and runs in quadratic time with respect to the braid length for any fixed braid index.
Citation
Matthieu Calvez. "Fast Nielsen–Thurston classification of braids." Algebr. Geom. Topol. 14 (3) 1745 - 1758, 2014. https://doi.org/10.2140/agt.2014.14.1745
Information