We study decompositions of complex hyperbolic isometries as products of involutions. We show that has involution length 4 and commutator length 1 and that, for all , has involution length at most 8.
"Involution and Commutator Length for Complex Hyperbolic Isometries." Michigan Math. J. 66 (4) 699 - 744, November 2017. https://doi.org/10.1307/mmj/1501812020