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Birkhoff Program for Geodesic Flows of Surfaces and Applications: Homoclinics
We show that a Kupka–Smale riemannian metric on a closed surface contains a finite primary set of closed geodesics, i.e. they intersect any other geodesic and divide the surface into simply connected regions. ...
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Article
Existence of Birkhoff sections for Kupka–Smale Reeb flows of closed contact 3-manifolds
A Reeb vector field satisfies the Kupka–Smale condition when all its closed orbits are non-degenerate, and the stable and unstable manifolds of its hyperbolic closed orbits intersect transversely. We show that...
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Article
On Finite Quotient Aubry set for Generic Geodesic Flows
We study the structure of the Mather and Aubry sets for the family of Lagrangians given by the kinetic energy associated to a Riemannian metric g on a closed manifold M. In this case the Euler-Lagrange flow is th...
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Article
Ground states are generically a periodic orbit
We prove that for an expanding transformation the maximizing measures of a generic Lipschitz function are supported on a single periodic orbit.
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Article
Homogenization on arbitrary manifolds
We describe a setting for homogenization of convex hamiltonians on abelian covers of any compact manifold. In this context we also provide a simple variational proof of standard homogenization results.
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Article
The Palais-Smale condition on contact type energy levels for convex Lagrangian systems
We prove that for a uniformly convex Lagrangian system L on a compact manifold M, almost all energy levels contain a periodic orbit. We also prove that below Mañé's critical value of the lift of the Lagrangian to...
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Article
Action potential and weak KAM solutions
For convex superlinear lagrangians on a compact manifold M we characterize the Peierls barrier and the weak KAM solutions of the Hamilton-Jacobi equation, as defined by A. Fathi [9], in terms of their values at ...
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Article
The hausdorff dimension of the harmonic class on negatively curved surfaces
We study the regularity of the Hausdorff dimension of the harmonic class of a surface M of negative curvature as a function of the riemannian metric. We prove that it is a Cr− 3 function of the metric in the Bana...
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Article
Lagrangian flows: The dynamics of globally minimizing orbits-II
Define the critical levelc(L) of a convex superlinear LagragianL as the infimum of thek ∈ ℝsuch that the LagragianL+k has minimizers with fixed endpoints and free time interval. We provide proofs for Mañé's state...
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Article
Non-hyperbolic surfaces having all ideal triangles with finite area
We construct examples ofC 3 compact surfaces of non-positive curvature having non-Anosov geodesic flows and satisfying the following property: there existsL>0 such that the area of every ideal triangle in the uni...
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Article
The derivatives of equilibrium states
We find some estimates for the derivatives of equilibrium states of subshifts of finite type. We prove the differentiability (with respect to the potential) of integrals of certain discontinuous functions for ...
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Article
Regularity of topological and metric entropy of hyperbolic flows