Local Shadowing and Entropy for Homeomorphisms

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Hauptverfasser: Oprocha, Piotr, Rego, Elias
Format: Preprint
Veröffentlicht: 2025
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author Oprocha, Piotr
Rego, Elias
author_facet Oprocha, Piotr
Rego, Elias
contents In this work, we investigate the dynamics of homeomorphisms through the lens of the local shadowing theory. We study the influence of positively shadowable points and positively shadowable measures into the local entropy theory of homeomrphisms. Specifically, we use pointwise shadowing to approximate invariant measures by ergodic measures with bigger entropy and supported on semi-horseshoes, giving certain flexibility of entropy to systems with local shadowing. We further apply our findings to show that by merging some pointwise dynamical properties, one can lead to positive entropy, significantly enhancing several related results previously established in the field. Besides, we introduce new examples of dynamical systems with local shadowing phenomena, by providing a way of construct examples, but lacking of several properties present in systems with the global shadowing, showing that the local and global shadowing are, in fact, distinct phenomena.
format Preprint
id arxiv_https___arxiv_org_abs_2502_10752
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Local Shadowing and Entropy for Homeomorphisms
Oprocha, Piotr
Rego, Elias
Dynamical Systems
Primary: 37B65, 37B05, Secondary: 37B40
In this work, we investigate the dynamics of homeomorphisms through the lens of the local shadowing theory. We study the influence of positively shadowable points and positively shadowable measures into the local entropy theory of homeomrphisms. Specifically, we use pointwise shadowing to approximate invariant measures by ergodic measures with bigger entropy and supported on semi-horseshoes, giving certain flexibility of entropy to systems with local shadowing. We further apply our findings to show that by merging some pointwise dynamical properties, one can lead to positive entropy, significantly enhancing several related results previously established in the field. Besides, we introduce new examples of dynamical systems with local shadowing phenomena, by providing a way of construct examples, but lacking of several properties present in systems with the global shadowing, showing that the local and global shadowing are, in fact, distinct phenomena.
title Local Shadowing and Entropy for Homeomorphisms
topic Dynamical Systems
Primary: 37B65, 37B05, Secondary: 37B40
url https://arxiv.org/abs/2502.10752