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Characterizing local connectedness by non-cut sets in continua

Jorge Vega <vegacevedofc@ciencias.unam.mx>, Benemérita Universidad Autónoma de Puebla

Abstract:

In this talk we show that for a continuum X, the following conditions are equivalent: (i) the continuum X is locally connected, (ii) each non-cut set of X has arbitrarily small open neighborhoods whose complements are connected, (iii) each non-cut set of X has continuum-wise connected complement, (iv) the continuum X is aposyndetic with respect to each of its non-cut sets, and (v) the continuum X is aposyndetic with respect to each of its nonempty closed sets.

Co-authors: Raúl Escobedo and Eduardo García-Muñoz.

Scheduled for: 2026-03-11 05:20 PM: Continua Session #2.5 in Heritage Hall Building 106

Icon: video Webinar

Status: Accepted

Collection: Continuum Theory

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