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Open retractions of indecomposable continua, II

Eiichi Matsuhashi, Jose Alberto Ortega Becerril Colloquium Mathematicum MSC: Primary 54F15; Secondary 54C10 DOI: 10.4064/cm9677-10-2025 Opublikowany online: 11 December 2025

Streszczenie

This paper is a sequel to [Colloq. Math. 148 (2017), 191–194]. Given an arbitrary continuum $Z$, we consider the class of all indecomposable continua that contain $Z$ as an open retract with Cantor set fibers and are closures of countable unions of topological copies of $Z$. We prove that this class admits no common model. Furthermore, when $Z$ is tree-like, we show that there exists a subclass of such continua that admits no common model and whose members are all tree-like.

Autorzy

  • Eiichi MatsuhashiDepartment of Mathematics
    Shimane University
    Matsue, Shimane, 690-8504, Japan
    e-mail
  • Jose Alberto Ortega BecerrilDepartment of Mathematics
    Faculty of Physical-Mathematical Sciences
    Benemérita Universidad Autónoma de Puebla
    Puebla, 72592, Mexico
    e-mail

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