We prove two inequalities between the Lyapunov exponents of a diffeomorphism and some characteristics of its local recurrence properties. We give examples of linear hyperbolic maps of the torus showing that each of the inequalities is optimal.
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Univ Sorbonne Paris Nord, LAGA CNRS, UMR 7539, F-93430 Villetaneuse, FranceUniv Sorbonne Paris Nord, LAGA CNRS, UMR 7539, F-93430 Villetaneuse, France
De Thelin, Henry
Gauthier, Thomas
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Inst Polytech Paris, CMLS UMR 7640, Ecole Polytech, F-91128 Palaiseau, FranceUniv Sorbonne Paris Nord, LAGA CNRS, UMR 7539, F-93430 Villetaneuse, France
Gauthier, Thomas
Vigny, Gabriel
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Univ Picardie Jules Verne, LAMFA UMR 7352, 33 Rue St Leu, F-80039 Amiens 1, FranceUniv Sorbonne Paris Nord, LAGA CNRS, UMR 7539, F-93430 Villetaneuse, France