| Title:
             | 
On subsets of Alexandroff duplicates (English) | 
| Author:
             | 
Mizokami, Takemi | 
| Language:
             | 
English | 
| Journal:
             | 
Commentationes Mathematicae Universitatis Carolinae | 
| ISSN:
             | 
0010-2628 (print) | 
| ISSN:
             | 
1213-7243 (online) | 
| Volume:
             | 
46 | 
| Issue:
             | 
1 | 
| Year:
             | 
2005 | 
| Pages:
             | 
125-130 | 
| . | 
| Category:
             | 
math | 
| . | 
| Summary:
             | 
We characterize the subsets of the Alexandroff duplicate which have a G$_\delta$-diagonal and the subsets which are M-spaces in the sense of Morita. (English) | 
| Keyword:
             | 
Alexandroff duplicate | 
| Keyword:
             | 
resolution | 
| MSC:
             | 
54B99 | 
| MSC:
             | 
54E18 | 
| idZBL:
             | 
Zbl 1121.54024 | 
| idMR:
             | 
MR2175864 | 
| . | 
| Date available:
             | 
2009-05-05T16:50:02Z | 
| Last updated:
             | 
2012-04-30 | 
| Stable URL:
             | 
http://hdl.handle.net/10338.dmlcz/119513 | 
| . | 
| Reference:
             | 
[1] Gruenhage G.: Generalized metric spaces.Handbook of Set-theoretic Topology, North-Holland, 1984, pp.423-501. Zbl 0794.54034, MR 0776629 | 
| Reference:
             | 
[2] Richardson K., Watson S.: Metrisable and discrete special resolutions.Topology Appl. 122 (2002), 605-615. Zbl 1024.54006, MR 1911703 | 
| Reference:
             | 
[3] Watson S.: The construction of topological spaces: Planks and resolutions.Recent Progress in General Topology, North-Holland, Amsterdam, 1992, pp.637-757. Zbl 0803.54001, MR 1229141 | 
| . |