On maps of spaces determined by countable subspaces
Karnik, S.M. (1981)
Portugaliae mathematica
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Karnik, S.M. (1981)
Portugaliae mathematica
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Hans H. Storrer (1973)
Publications du Département de mathématiques (Lyon)
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A. J. De Jong (1995)
Compositio Mathematica
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Arens, Richard, Dugundji, J. (1950)
Portugaliae mathematica
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Alexander S. Kechris, Alain Louveau (1990)
Colloquium Mathematicae
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Luong Quoc Tuyen (2012)
Commentationes Mathematicae Universitatis Carolinae
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In this paper, we prove that each sequence-covering and boundary-compact map on -metrizable spaces is 1-sequence-covering. Then, we give some relationships between sequence-covering maps and 1-sequence-covering maps or weak-open maps, and give an affirmative answer to the problem posed by F.C. Lin and S. Lin in [].
Rastislav Telgársky (1976)
Colloquium Mathematicae
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Li, Zhaowen (2005)
International Journal of Mathematics and Mathematical Sciences
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