A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

A numerical scale for non-locally connected planar continua




TekijätTimo Jolivet, Benoît Loridant, Jun Luo

KustantajaELSEVIER SCIENCE BV

Julkaisuvuosi2016

JournalTopology and its Applications

Tietokannassa oleva lehden nimiTOPOLOGY AND ITS APPLICATIONS

Lehden akronyymiTOPOL APPL

Vuosikerta202

Aloitussivu21

Lopetussivu39

Sivujen määrä19

ISSN0166-8641

eISSN1879-3207

DOIhttps://doi.org/10.1016/j.topol.2015.12.060


Tiivistelmä

We introduce a numerical scale to quantify to which extent a planar continuum is not locally connected. For a locally connected continuum, the numerical scale is zero; for a continuum like the topologist's sine curve, the scale is one; for an indecomposable continuum, it is infinite. We use a purely topological framework of fibers and further characterize the local connectedness of a planar continuum in terms of triviality of its fibers. (C) 2016 Elsevier B.V. All rights reserved.




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