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math.GN2024
On real-valued functions of Lipschitz type
Valentin Gutev
The classical McShane-Whitney extension theorem for Lipschitz functions is refined by showing that for a closed subset of the domain, it remains valid for any interval of the real…
math.GN2024
Butterfly Points and Hyperspace Selections
Valentin Gutev
If is a continuous selection for the Vietoris hyperspace of the nonempty closed subsets of a space , then the point is not as arbitrary as it mi…