%0 Journal Article %A Caprace, Pierre-Emmanuel %A de la Harpe, Pierre %T Groups with irreducibly unfaithful subsets for unitary representations %J Confluentes Mathematici %D 2020 %P 31-68 %V 12 %N 1 %I Institut Camille Jordan %U http://www.numdam.org/articles/10.5802/cml.61/ %R 10.5802/cml.61 %G en %F CML_2020__12_1_31_0