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Whitney levels in $ C\sb p(X)$ are ARs


Author: Mark Lynch
Journal: Proc. Amer. Math. Soc. 97 (1986), 748-750
MSC: Primary 54B20; Secondary 54C55, 54C56, 54F45
DOI: https://doi.org/10.1090/S0002-9939-1986-0846000-1
MathSciNet review: 846000
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Abstract: For $ X$ a metric continuum, and $ p \in X$, we show that the Whitney levels in the relative hyperspace $ {C_p}(X) = \{ K \in C(X)\vert p \in K\} $ are absolute retracts.


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Additional Information

DOI: https://doi.org/10.1090/S0002-9939-1986-0846000-1
Keywords: Absolute retract, hyperspace of subcontinua, Whitney level
Article copyright: © Copyright 1986 American Mathematical Society

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