| Title:
|
Mapping theorems on $\aleph$-spaces (English) |
| Author:
|
Sakai, Masami |
| Language:
|
English |
| Journal:
|
Commentationes Mathematicae Universitatis Carolinae |
| ISSN:
|
0010-2628 (print) |
| ISSN:
|
1213-7243 (online) |
| Volume:
|
49 |
| Issue:
|
1 |
| Year:
|
2008 |
| Pages:
|
163-167 |
| . |
| Category:
|
math |
| . |
| Summary:
|
In this paper we improve some mapping theorems on $\aleph$-spaces. For instance we show that an $\aleph$-space is preserved by a closed and countably bi-quotient map. This is an improvement of Yun Ziqiu's theorem: an $\aleph$-space is preserved by a closed and open map. (English) |
| Keyword:
|
$\aleph$-space |
| Keyword:
|
$k$-network |
| Keyword:
|
closed map |
| Keyword:
|
countably bi-quotient map |
| MSC:
|
54C10 |
| MSC:
|
54E18 |
| idZBL:
|
Zbl 1212.54049 |
| idMR:
|
MR2433634 |
| . |
| Date available:
|
2009-05-05T17:07:19Z |
| Last updated:
|
2013-09-22 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/119711 |
| . |
| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| Reference:
|
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| . |
