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Lobachevskii Journal of Mathematics, 2007, том 26, страницы 33–49
(Mi ljm25)
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Spaces with a locally countable $sn$-network
X. Ge Soochow University
Аннотация:
In this paper, we discuss a class of spaces with a locally countable $sn$-network. We give some characterizations of this class and investigate variance and inverse invariance of this class under certain mappings.
Ключевые слова:
$sn$-network, $cs$-network, weak-base, perfectmapping, (strongly) Lindelöf mapping, finite subsequence-covering mapping.
Образец цитирования:
X. Ge, “Spaces with a locally countable $sn$-network”, Lobachevskii J. Math., 26 (2007), 33–49
Образцы ссылок на эту страницу:
https://www.mathnet.ru/rus/ljm25 https://www.mathnet.ru/rus/ljm/v26/p33
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