Topological entropy and IE-tuples of indecomposable continua

Hisao Kato Fundamenta Mathematicae MSC: Primary 54H20, 37B45, 37B40; Secondary 54F15. DOI: 10.4064/fm401-12-2018 Opublikowany online: 17 June 2019

Streszczenie

For a graph $G$ we define a new notion of “free tracing property by free $G$-chains” on $G$-like continua and we prove that a positive topological entropy homeomorphism $f$ of a $G$-like continuum $X$ admits a Cantor set $Z$ in $X$ and an indecomposable subcontinuum $H$ of $X$ satisfying the following conditions:

(1) $Z$ has the free tracing property by free $G$-chains,

(2) $H$ is the unique minimal subcontinuum of $X$ containing $Z$ and no two points of $Z$ belong to the same composant of $H$,

(3) any sequence $(z_1,\ldots,z_n)$ of points in $Z$ is an IE-tuple of $f$, and

(4) $f$ is Li–Yorke chaotic on $Z$.

Autorzy

  • Hisao KatoInstitute of Mathematics
    University of Tsukuba
    Tsukuba, Ibaraki 305-8571, Japan
    e-mail

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