Contractibility of curves

Janusz Charatonik

Abstract


Results concerning contractibility of curves (equivalently: of dendroids) are collected and discussed in the paper. Interrelations tetween various conditions which are either sufficient or necessary for a curve to be contractible are studied.

Keywords


Bend set; Continuum; Contractible; Curve; Dendroid; Fan; Homotopy; Pairwise smooth; Pointwise smooth; Q-point; R-continuum; Selectible; Smooth; Type N

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