Let X(2) denote the space of all non-empty subsets of X consisting of at most two elements. It is shown that a Hausdorff space X is topologically well-ordered iff there exists a Fell continuous selector on X(2).
Selections and topologically well-ordered spaces
ARTICO, GIULIANO;MARCONI, UMBERTO
2001
Abstract
Let X(2) denote the space of all non-empty subsets of X consisting of at most two elements. It is shown that a Hausdorff space X is topologically well-ordered iff there exists a Fell continuous selector on X(2).File in questo prodotto:
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