| A mapping theorem on $\aleph$-spaces |
| Zhaowen Li |
Abstract In this paper we give a mapping theorems on $\aleph$-spaces by means of strong compact-covering mappings and $\sigma$-mappings. As an application, we get characterizations of quotient (pseudo-open) $\sigma$-images of metric spaces.
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Keywords: $\aleph$-spaces; strong compact-covering mappings; $\sigma$-mappings; $k$-spaces; Fréchet spaces. |
MSC: 54E99, 54C10 |
Pages: 35--40 |
Volume 57 , Issue 1$-$2 , 2005 |
