Regular and Chaotic Dynamics

, Volume 15, Issue 2–3, pp 210–221 | Cite as

Approximation of entropy on hyperbolic sets for one-dimensional maps and their multidimensional perturbations

L.P. Shilnikov-75 Special Issue
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Abstract

We consider piecewise monotone (not necessarily, strictly) piecewise C 2 maps on the interval with positive topological entropy. For such a map f we prove that its topological entropy h top(f) can be approximated (with any required accuracy) by restriction on a compact strictly f-invariant hyperbolic set disjoint from some neighborhood of prescribed set consisting of periodic attractors, nonhyperbolic intervals and endpoints of monotonicity intervals. By using this result we are able to generalize main theorem from [1] on chaotic behavior of multidimensional perturbations of solutions for difference equations which depend on two variables at nonperturbed value of parameter.

Key words

chaotic dynamics difference equations one-dimensional maps topological entropy hyperbolic orbits 

MSC2000 numbers

37D45 

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Copyright information

© Pleiades Publishing, Ltd. 2010

Authors and Affiliations

  1. 1.Department of Applied MathematicsNational Chiao Tung UniversityHsinchuTaiwan
  2. 2.Department of Mathematics and MechanicsNizhny Novgorod State UniversityNizhny NovgorodRussia

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