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Sous-groupes discrets de PU(2,1) engendrés par n réflexions complexes et Déformation

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Let PU(2,1) be the group of holomorphic isometries in the hyperbolic complex plane \({{\mathbb{H}}^2_{\mathbb{C}}}\) and let G n be a sub-group of PU(2,1) which is generated by n complex reflections with respect to complex lines in \({{{\mathbb{H}}^2_{\mathbb{C}}}}\) . Under certain conditions, we prove that G n is discrete. We construct representations ρ of the fundamental group Γ g of the compact surface Σ g of genus g, into PU(2,1), we prove they are discrete, faithful and we compute the dimension their deformation space.

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Correspondence to Masseye Gaye.

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Gaye, M. Sous-groupes discrets de PU(2,1) engendrés par n réflexions complexes et Déformation. Geom Dedicata 137, 27–61 (2008). https://doi.org/10.1007/s10711-008-9285-6

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