Some refinements of a selection theorem with O-dimensional domain
Volume 140 / 1992
Fundamenta Mathematicae 140 (1992), 279-287
DOI: 10.4064/fm-140-3-279-287
Abstract
The following known selection theorem is sharpened, primarily, by weakening the hypothesis that all the sets φ(x) are closed in Y: Let X be paracompact with dimX = 0, let Y be completely metrizable and let φ:X →