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<dc:title xml:lang="fr">Variétés projectives convexes de volume fini</dc:title>
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<dc:subject xml:lang="fr">Variétés projectives convexes</dc:subject>
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<dc:subject xml:lang="fr">Holonomie</dc:subject>
<dc:subject xml:lang="fr">Adhérence de Zariski</dc:subject>
<dc:subject xml:lang="fr">Structures projectives</dc:subject>
<dc:subject xml:lang="en">Convex projective manifolds</dc:subject>
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<dc:subject xml:lang="en">Real hyperbolic space</dc:subject>
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<dc:subject xml:lang="en">Zariski closure</dc:subject>
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<tef:elementdEntree autoriteExterne="031697534" autoriteSource="Sudoc">Espaces projectifs</tef:elementdEntree>
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<dcterms:abstract xml:lang="fr">Cette thèse est consacrée à l'étude des variétés projectives strictement convexes de volume fini. Une telle variété est le quotient G\U d'un ouvert proprement convexe U de l'espace projectif réel RP^(n-1) par un sous-groupe discret sans torsion G de SLn(R) qui préserve U. Dans un premier temps, on étudie l'adhérence de Zariski des holonomies de variétés projectives strictement convexes de volume fini. Pour une telle variété G\U, on montre que, soit G est Zariski-dense dans SLn(R), soit l'adhérence de Zariski de G est conjuguée à SO(1,n-1). On s'intéresse ensuite à l'espace des modules des structures projectives strictement convexes de volume fini. On montre en particulier que cet espace des modules est un fermé de l'espace des représentations.</dcterms:abstract>
<dcterms:abstract xml:lang="en">In this thesis, we study strictly convex projective manifolds of finite volume. Such a manifold is the quotient G\U of a properly convex open subset U of the real projective space RP^(n-1) by a discrete torsionfree subgroup G of SLn(R) preserving U. We study the Zariski closure of holonomies of convex projective manifolds of finite volume. For such manifolds G\U, we show that either the Zariski closure of G is SLn(R) or it is a conjugate of SO(1,n-1).We also focuss on the moduli space of strictly convex projective structures of finite volume. We show that this moduli space is a closed set of the representation space.</dcterms:abstract>
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