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Weak chainability of arc folders

Volume 163 / 2021

C. L. Hagopian, M. M. Marsh, J. R. Prajs Colloquium Mathematicum 163 (2021), 211-221 MSC: Primary 54F15, 54B15, 54D80; Secondary 54C10. DOI: 10.4064/cm7925-2-2020 Published online: 19 June 2020

Abstract

Arc folders are continua that admit mappings onto an arc where the preimage of each point is either an arc or a point. We show that all arc folders are weakly chainable. Equivalently, they are continuous images of the pseudo-arc. We conclude that a continuum $X$ that admits a mapping $f\colon X\to Y$ onto a locally connected continuum $Y$, where the preimage of each point is either an arc or a point, is weakly chainable.

Authors

  • C. L. HagopianDepartment of Mathematics & Statistics
    California State University, Sacramento
    Sacramento, CA 95819-6051, U.S.A.
    e-mail
  • M. M. MarshDepartment of Mathematics & Statistics
    California State University, Sacramento
    Sacramento, CA 95819-6051, U.S.A.
    e-mail
  • J. R. PrajsDepartment of Mathematics & Statistics
    California State University, Sacramento
    Sacramento, CA 95819-6051, U.S.A.
    e-mail

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