Title of article
Nonblockers in hyperspaces
Author/Authors
Escobedo، نويسنده , , Raْl and de Jesْs Lَpez، نويسنده , , Marيa and Villanueva، نويسنده , , Hugo، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2012
Pages
5
From page
3614
To page
3618
Abstract
Using nonblockers in hyperspaces (Illanes and Krupski (2011) [3]), we characterize some classes of locally connected continua: the simple closed curve, the arc, trees, and dendrites. We prove that the simple closed curve is the unique locally connected continuum for which the set of nonblockers of singletons is a continuum. We show that the set of nonblockers is also a continuum for the circle of pseudo-arcs.
Keywords
ARC , Blockers , Circle of pseudo-arcs , Continuum , Hyperspace , Simple closed curve , Tree , dendrite
Journal title
Topology and its Applications
Serial Year
2012
Journal title
Topology and its Applications
Record number
1583564
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