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Related papers: Expansivity and unique shadowing

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For any continuous self-map of a compact metric space, we consider the space of chain components and prove that the s-limit shadowing implies the denseness of chain components with the shadowing property. It gives a partial answer to a…

Dynamical Systems · Mathematics 2023-07-31 Noriaki Kawaguchi

In this paper, we introduce the concept of S-expansiveness for local homeomorphisms and demonstrate that a class of extended symbolic dynamics, known as zip shift maps, are S-expansive and possess the shadowing property. Furthermore, we…

Dynamical Systems · Mathematics 2025-10-16 S. Lamei , P. Mehdipour , W. Vargas

We characterize product Anosov diffeomorphisms in terms of the two-sided limit shadowing property. It is proved that an Anosov diffeomorphism is a product Anosov diffeomorphism if and only if any lift to the universal covering has the…

Dynamical Systems · Mathematics 2024-10-22 Bernardo Carvalho

We introduce topological definitions of expansivity, shadowing, and chain recurrence for homeomorphisms. They generalize the usual definitions for metric spaces. We prove various theorems about topologically Anosov homeomorphisms (maps that…

Dynamical Systems · Mathematics 2011-09-14 Tarun Das , Keonhee Lee , David Richeson , Jim Wiseman

We consider the problem of the observability of positively expansive maps by the time series associated to continuous real functions. For this purpose we prove a general result on the generic observability of a locally injective map of a…

Dynamical Systems · Mathematics 2016-11-28 Mauricio Achigar , Alfonso Artigue , Ignacio Monteverde

Consider the self-map F of the space of real-valued test functions on the line which takes a test function f to the test function sending a real number x to f(f(x))-f(0). We show that F is discontinuous, although its restriction to the…

General Topology · Mathematics 2007-05-23 Helge Glockner

We prove that a homeomorphism f of a compact metric space X satisfies the L-shadowing property if and only if its induced hyperspace homeomorphism also satisfies the L-shadowing property. In the proof, assuming only the L-shadowing…

Dynamical Systems · Mathematics 2025-12-10 Mayara Antunes , Bernardo Carvalho , Welington Cordeiro

We provide an alternative view of some results in [1, 3, 11]. In particular, we prove that (1) if a continuous self-map of a compact metric space has the shadowing, then the union of the basins of terminal chain components is a dense…

Dynamical Systems · Mathematics 2025-02-19 Noriaki Kawaguchi

In this article we characterize monotone extensions of cw-expansive homeomorphisms of compact metric spaces. We study the topology of its quotient space in the case of a compact surface. These results are applied to prove that there are…

Dynamical Systems · Mathematics 2019-11-06 Mauricio Achigar , Alfonso Artigue , José Vieitez

When finding an original proof to a known result describing expansive mappings on compact metric spaces as surjective isometries, we reveal that relaxing the condition of compactness to total boundedness preserves the isometry property and…

Functional Analysis · Mathematics 2019-10-24 Marat V. Markin , Edward S. Sichel

We show that the Lipschitz shadowing property of a diffeomorphism is equivalent to structural stability. As a corollary, we show that an expansive diffeomorphism having the Lipschitz shadowing property is Anosov.

Dynamical Systems · Mathematics 2010-10-19 Sergei Yu. Pilyugin , Sergey Tikhomirov

Let X be a divergence-free vector field defined on a closed, connected Riemannian manifold. In this paper, we show the equivalence between the following conditions: 1. X is in the C1-interior of the set of expansive divergence-free vector…

Dynamical Systems · Mathematics 2010-11-17 Célia Ferreira

In this paper, we study one of the fundamental notions in dynamical systems, the shadowing of invertible (bounded and linear) operators on a Hilbert space. Although the problem of finding a spectral characterization for shadowing has been…

Dynamical Systems · Mathematics 2025-11-20 Mihály Pituk

We find sufficient conditions for commutative non-autonomous systems on certain metric spaces to be topologically stable. In particular, we prove that (i) Every mean equicontinuous, mean expansive system with strong average shadowing…

Dynamical Systems · Mathematics 2019-06-25 Abdul Gaffar Khan , Pramod Kumar Das , Tarun Das

We study homeomorphisms of compact metric spaces whose restriction to the nonwandering set has the pseudo-orbit tracing property. We prove that if there are positively expansive measures, then the topological entropy is positive. Some short…

Dynamical Systems · Mathematics 2014-09-12 C. A. Morales

We study two notions of expansiveness for continuous semiflows: expansiveness in the sense of Alves, Carvalho and Siqueira (2017), and an adaptation of positive expansiveness in the sense of Artigue (2014). We prove that if $X$ is a metric…

Dynamical Systems · Mathematics 2021-09-14 Sebastián Herrero , Nelda Jaque

We prove that for a topological space $X$, an equiconnected space $Z$ and a Baire-one mapping $g:X\to Z$ there exists a separately continuous mapping $f:X^2\to Z$ with the diagonal $g$, i.e. $g(x)=f(x,x)$ for every $x\in X$. Under a mild…

General Topology · Mathematics 2014-07-23 Olena Karlova , Volodymyr Mykhaylyuk , Oleksandr Sobchuk

We study various weaker forms of inverse shadowing property for discrete dynamical systems on a smooth compact manifold. First, we introduce the so-called Ergodic Inverse Shadowing property (Birhhoff averages of continuous functions along…

Dynamical Systems · Mathematics 2020-03-13 Sergey Kryzhevich , Sergey Pilyugin

We obtain sufficient conditions under which the limit of a sequence of functions exhibits a particular dynamical behaviour at a point like expansivity, shadowing, mixing, sensitivity and transitivity. We provide examples to show that the…

Dynamical Systems · Mathematics 2019-07-15 Abdul Gaffar Khan , Pramod Kumar Das , Tarun Das

We point out a basic dichotomy between the shadowing and Lipschitz shadowing properties for one-sided shift spaces in two infinite-alphabet frameworks: the classical product-topology model $X\subseteq A^{\mathbb{N}}$ and the compact…

Dynamical Systems · Mathematics 2026-03-04 Daniel Gonçalves , Sofia Meneghel Silva