Properties of invariant measures in dynamical systems with the shadowing property

Abstract

For dynamical systems with the shadowing property, we provide a method of approximation of invariant measures by ergodic measures supported on odometers and their almost 1-1 extensions. For a topologically transitive system with the shadowing property, we show that ergodic measures supported on odometers are dense in the space of invariant measures, and then ergodic measures are generic in the space of invariant measures. We also show that for every $c\ge 0$ and $\epsilon >0$ the collection of ergodic measures (supported on almost 1-1 extensions of odometers) with entropy between $c$ and $c+\epsilon$ is dense in the space of invariant measures with entropy at least $c$. Moreover, if in addition the entropy function is upper semi-continuous, then for every $c\ge 0$ ergodic measures with entropy $c$ are generic in the space of invariant measures with entropy at least $c$.

32 pages, 2 figures. To appear in Erg. Th. & Dyn. Sys

References in corpus (2)

• Shadowing property, weak mixing and regular recurrence
• Chaos on the interval - a survey of relationship between the various kinds of chaos for continuous interval maps

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