Exemples de vari\'et\'es projectives strictement convexes de volume fini en dimension quelconque
Abstract
We build examples of properly convex projective manifold / which have finite volume, are not compact, nor hyperbolic in every dimension n ≥slant 2. On the way, we build Zariski-dense discrete subgroups of n+1() which are not lattice, nor Schottky groups. Moreover, the open properly convex set is strictly-convex, even Gromov-hyperbolic. Nous construisons des exemples de vari\'et\'es projectives / proprement convexes de volume fini, non hyperbolique, non compacte en toute dimension n ≥slant 2. Ceci nous permet au passage de construire des groupes discrets Zariski-dense de n+1() qui ne sont ni des r\'eseaux de n+1(), ni des groupes de Schottky. De plus, l'ouvert proprement convexe est strictement convexe, m\eme Gromov-hyperbolique.
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