For a smooth map in a separable Banach space with a hyperbolic invariant measure, we mainly prove that positivity of the measure-theoretic entropy of the hyperbolic measure implies the existence of periodic orbits and horseshoes. This is an extension of Lian and Young's work on maps in a Hilbert space to the case of systems on a Banach space. (C) 2020 Elsevier Inc. All rights reserved.
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Univ Autonoma Coahuila, Unidad Campo Redondo, Fac Ciencias Fis Matemat, Edificio A, Saltillo 25020, Coahuila, MexicoUniv Autonoma Coahuila, Unidad Campo Redondo, Fac Ciencias Fis Matemat, Edificio A, Saltillo 25020, Coahuila, Mexico
Burgos-Garcia, Jaime
Lessard, Jean-Philippe
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McGill Univ, Dept Math & Stat, 805 Sherbrooke West, Montreal, PQ H3A 0B9, CanadaUniv Autonoma Coahuila, Unidad Campo Redondo, Fac Ciencias Fis Matemat, Edificio A, Saltillo 25020, Coahuila, Mexico
Lessard, Jean-Philippe
James, J. D. Mireles
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Florida Atlantic Univ, Dept Math Sci, Boca Raton, FL 33431 USAUniv Autonoma Coahuila, Unidad Campo Redondo, Fac Ciencias Fis Matemat, Edificio A, Saltillo 25020, Coahuila, Mexico