Filtrated Pseudo-Orbit Shadowing Property and Approximately Shadowable Measures

• Main Authors: Kazuhiro Sakai, Naoya Sumi
• Format: Article
• Language: English
• Published: MDPI AG 2021-03-01
• Series: Axioms
• Subjects: filtration; pseudo-orbit; shadowing property; shadowable measure; approximately shadowable measure; Axiom A
• Online Access: https://www.mdpi.com/2075-1680/10/1/38

In this paper, it is proved that every diffeomorphism possessing the filtrated pseudo-orbit shadowing property admits an approximately shadowable Lebesgue measure. Furthermore, the <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>C</mi><mn>1</mn></msup></semantics></math></inline-formula>-interior of the set of diffeomorphisms possessing the filtrated pseudo-orbit shadowing property is characterized as the set of diffeomorphisms satisfying both Axiom A and the no-cycle condition. As a corollary, it is proved that there exists a <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>C</mi><mn>1</mn></msup></semantics></math></inline-formula>-open set of diffeomorphisms, any element of which does not have the shadowing property but admits an approximately shadowable Lebesgue measure.