Weyl structures for parabolic geometries     Weyl structures  parabolic geometries       font style='font-size:12px;'> 2010/11/1

Motivated by the rich geometry of conformal Riemannian manifolds and by the recent development of geometries modeled on homogeneous spaces $G/P$ with $G$ semisimple and $P$ parabolic, Weyl structures...

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Géométries relatives (Relative geometries)      Model Theory  Amalgamation methods  CM-triviality  Geometry,Group  Definability       font style='font-size:12px;'> 2010/11/29

R´esum´e. Une analyse des propri´et´es g´eom´etriques d’une structure relatives `a un reduit est entam´ee. En particulier la d´efinissabilit´e des...

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