Spaces With -Locally Finite Lindelöf sn-Networks
Luong Quoc Tuyen (2013)
Publications de l'Institut Mathématique
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Displaying similar documents to “-Ponomarev’s System and Images of Locally Separable Metric Spaces”
Spaces With -Locally Finite Lindelöf sn-Networks
-metrizable spaces and related matters.
Luo, Zhiming (2005)
International Journal of Mathematics and Mathematical Sciences
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Notes on -covers
Shou Lin, Peng Fei Yan (2003)
Commentationes Mathematicae Universitatis Carolinae
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The main purpose of this paper is to establish general conditions under which -spaces are compact-covering images of metric spaces by using the concept of -covers. We generalize a series of results on compact-covering open images and sequence-covering quotient images of metric spaces, and correct some mapping characterizations of -metrizable spaces by compact-covering -maps and -maps.
The class of -spaces is invariant of closed mappings with Lindelöf fibres
Shu Hao Sun (1988)
Commentationes Mathematicae Universitatis Carolinae
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On -images of locally separable metric spaces.
Van An, Tran, Van Dung, Nguyen (2008)
International Journal of Mathematics and Mathematical Sciences
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On --images of metric spaces.
Li, Zhaowen (2005)
International Journal of Mathematics and Mathematical Sciences
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Further properties of 1-sequence-covering maps
Tran Van An, Luong Quoc Tuyen (2008)
Commentationes Mathematicae Universitatis Carolinae
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Some relationships between -sequence-covering maps and weak-open maps or sequence-covering -maps are discussed. These results are used to generalize a result from Lin S., Yan P., , Topology Appl. (2001), 301–314.