Geodesics and Totally Convex Sets on Surfaces.
Geodesics in the compactly supported Hamiltonian diffeomorphism group.
Geodesics on open surfaces containing horns
Geodesics on quadrics and a mechanical problem of C. Neumann.
Géodésiques et horocycles sur le revêtement d'homologie d'une surface hyperbolique
Geometric and ergodic properties of the stable foliation
Geometric expansion, Lyapunov exponents and foliations
Géométrie des variétés invariantes d'un difféomorphisme axiome A et transversalité forte
Geometry on the group of Hamiltonian diffeomorphisms.
Gibbs-Markov-Young structures*, **, ***
We discuss the geometric structures defined by Young in [9, 10], which are used to prove the existence of an ergodic absolutely continuous invariant probability measure and to study the decay of correlations in expanding or hyperbolic systems on large parts.
Global dynamics of a competitive system of rational difference equations in the plane.
Global synchronization of chaotic Lur’e systems via replacing variables control
Finding sufficient criteria for synchronization of master-slave chaotic systems by replacing variables control has been an open problem in the field of chaos control. This paper presents some recent works on the subject, with emphasis on chaos synchronization of both identical and parametrically mismatched Lur’e systems by replacing variables control. The synchronization schemes are formally constructed and two classes of sufficient criteria for global synchronization, linear matrix inequality criterion...
Good Banach spaces for piecewise hyperbolic maps via interpolation
Gradient-Like and Integrable Vector Fields on IR2.
Groupes de Schottky et comptage
Soient un espace symétrique de type non compact et un groupe discret d’isométries de du type de Schottky. Dans cet article, nous donnons des équivalents des fonctions orbitales de comptage pour l’action de sur .
Half-delocalization of eigenfunctions for the Laplacian on an Anosov manifold
We study the high-energy eigenfunctions of the Laplacian on a compact Riemannian manifold with Anosov geodesic flow. The localization of a semiclassical measure associated with a sequence of eigenfunctions is characterized by the Kolmogorov-Sinai entropy of this measure. We show that this entropy is necessarily bounded from below by a constant which, in the case of constant negative curvature, equals half the maximal entropy. In this sense, high-energy eigenfunctions are at least half-delocalized....
Hard ball systems are completely hyperbolic.
Hard balls gas and Alexandrov spaces of curvature bounded above.
Hausdorff and packing dimensions for ergodic invariant measures of two-dimensional Lorenz transformations
We extend the notions of Hausdorff and packing dimension introducing weights in their definition. These dimensions are computed for ergodic invariant probability measures of two-dimensional Lorenz transformations, which are transformations of the type occuring as first return maps to a certain cross section for the Lorenz differential equation. We give a formula of the dimensions of such measures in terms of entropy and Lyapunov exponents. This is done for two choices of the weights using the recurrence...
Heegaard splittings and Morse-Smale flows.