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arXiv · 1604.02159

Involution and commutator length for complex hyperbolic isometries

Abstract

We study decompositions of complex hyperbolic isometries as products of involutions. We show that PU(2,1) has involution length 4 and commutator length 1, and that for all $n \geqslant 3$ PU($n$,1) has involution length at most 8.

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Julien Paupert, Pierre Will. 2016-04-07. Involution and commutator length for complex hyperbolic isometries. https://arxiv.org/abs/1604.02159

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