Double suspension d'une sphère d'homologie
Doubles of groups and hyperbolic LERF 3-manifolds.
Dualité dans les revetements galoisiens.
Dynamical systems and the homology norm of a 3-manifold II.
Dynamics of out on the boundary of outer space
Dynamics on Character Varieties and Malgrange irreducibility of Painlevé VI equation
We consider representations of the fundamental group of the four punctured sphere into . The moduli space of representations modulo conjugacy is the character variety. The Mapping Class Group of the punctured sphere acts on this space by symplectic polynomial automorphisms. This dynamical system can be interpreted as the monodromy of the Painlevé VI equation. Infinite bounded orbits are characterized: they come from -representations. We prove the absence of invariant affine structure (and invariant...