Resumen de Atriodic Absolute Retracts for Hereditarily Unicoherent Continua

Wlodzimier J. Charatonik , Janusz R. Prajs, Janusz J. Charatonik

• Let X be an absolute retract for the class of hereditarily unicoherent continua that contains no simple triod. In the paper we prove that (a) X is atriodic; (b) X is either an arc or an indecomposable continuum having only arcs as its proper subcontinua; (c) if X is either tree-like or circle-like, then it is arc-like.