Démonstration d'un théorème de Penner sur la composition des twists de Dehn
Regularity of solutions of the Hamilton-Jacobi equation
Failure of convergence of the Lax-Oleinik semi-group in the time periodic case
Infinitesimal conjugacies and Weil-Petersson metric
We study deformations of compact Riemannian manifolds of negative curvature. We give an equation for the infinitesimal conjugacy between geodesic flows. This in turn allows us to compute derivatives of intersection of metrics. As a consequence we obtain a proof of a theorem of Wolpert.
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