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Journal of Dynamical Systems and Geometric Theories cover
Open Access ·Peer-reviewed·ISSN (Online): 2169-0057·ISSN (Print): 1726-037X
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The Journal of Dynamical Systems and Geometric Theories (JDSGT) is a world leading journal publishing high quality, rigorously peer-reviewed original research on dynamical systems and geometry, including the interactions between these two subjects and interdisciplinary research with other branches of knowledge since 2003. Topics published by the Journal include but are not limited to: Random dynamical systems Geometry and physics Dynamical systems with hyperbolic behaviour Real and complex geometry Ergodic theory Distance geometry Topological dynamics Global differential geometry Infinite-dimensional Hamiltonian systems Symplectic geometry, contact geometry The journal considers original research articles, survey articles, and book reviews for publication. Responses to articles and correspondence will also be considered at the Chief Editor’s discretion.

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Open Access Research Article

ON APPROXIMATION OF RELATIVE ENTROPIES

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pp. 1–14Vol. 21Issue 1May 2023DOI: 10.47974/JDSGT-21-1-P02XML
Received:
02 Feb 2023
Published Online:
01 May 2023
Article type:
Research Article
Language:
EN
Article no.:
JDSGT-21-1-P02
Pages:
1–14

Abstract

We analyze when symbolic dynamical systems have intermediate relative entropies for two symbolic spaces (X, o1) and (Y, o2). By this is understood to study the denseness of relative measure-theoretic entropies in the interval [0, h(v, o1)], where h(v, o1) is a relative topological entropy of the shift o1 with respect to a o2-invariant measure  in Y . We prove that for irreducible shifts with the (strong) specification property as introduced by Bowen, the set of the relative measure-theoretic entropies is dense in the above mentioned sense. To this, we use the decomposition of factor codes of Yoo and a variational principle for relative entropies given by Barral and Feng.

Keywords

Subject Classifications

37A3537B10

References

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