On a characterization of quasicontinuous multifunctions
Tibor Neubrunn, Ondrej Náther (1982)
Časopis pro pěstování matematiky
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Tibor Neubrunn, Ondrej Náther (1982)
Časopis pro pěstování matematiky
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D. Holý (2001)
Mathematica Bohemica
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The set of points of upper semicontinuity of multi-valued mappings with a closed graph is studied. A topology on the space of multi-valued mappings with a closed graph is introduced.
Valentin Gutev (2011)
Fundamenta Mathematicae
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A classical Lefschetz result about point-finite open covers of normal spaces is generalised by showing that every lower semi-continuous mapping from a normal space into the nonempty compact subsets of a metrizable space admits a closed graph multi-selection. Several applications are given as well.
Valeriu Popa, Takashi Noiri (1993)
Mathematica Slovaca
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Rade Dacic (1969)
Publications de l'Institut Mathématique [Elektronische Ressource]
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