| Title:
|
Some results on $L\Sigma(\kappa)$-spaces (English) |
| Author:
|
Casarrubias Segura, F. |
| Author:
|
Okunev, O. |
| Author:
|
Ramírez, C. G. Paniagua |
| Language:
|
English |
| Journal:
|
Commentationes Mathematicae Universitatis Carolinae |
| ISSN:
|
0010-2628 (print) |
| ISSN:
|
1213-7243 (online) |
| Volume:
|
49 |
| Issue:
|
4 |
| Year:
|
2008 |
| Pages:
|
667-675 |
| . |
| Category:
|
math |
| . |
| Summary:
|
We present several results related to $L\Sigma(\kappa)$-spaces where $\kappa$ is a finite cardinal or $\omega$; we consider products and some constructions that lead from spaces of these classes to other spaces of similar classes. (English) |
| Keyword:
|
upper semicontinuous mappings |
| Keyword:
|
products |
| Keyword:
|
Lindelöf $\Sigma$-spaces |
| MSC:
|
54B10 |
| MSC:
|
54C60 |
| MSC:
|
54D20 |
| idZBL:
|
Zbl 1212.54075 |
| idMR:
|
MR2493946 |
| . |
| Date available:
|
2009-05-05T17:13:52Z |
| Last updated:
|
2013-09-22 |
| Stable URL:
|
http://hdl.handle.net/10338.dmlcz/119754 |
| . |
| Reference:
|
[Eng1] Engelking R.: On the double circumference of Alexandroff.Bull. Acad. Pol. Sci. Ser. Astron. Math. Phys. 16 8 (1968), 629-634. Zbl 0167.21001, MR 0239564 |
| Reference:
|
[Eng2] Engelking R.: General Topology.Sigma Series in Pure Mathematics 6 Helderman, Lemgo (1989). Zbl 0684.54001, MR 1039321 |
| Reference:
|
[KOS] Kubiš W., Okunev O., Szeptycki P.J.: On some classes of Lindelöf $\Sigma$-spaces.Topology Appl. 153 14 (2006), 2574-2590. Zbl 1102.54028, MR 2243735, 10.1016/j.topol.2005.09.009 |
| Reference:
|
[Nag] Nagami K.: $\Sigma$-spaces.Fund. Math. 65 2 169-192 (1969). Zbl 0181.50701, MR 0257963 |
| Reference:
|
[Oku] Okunev O.G.: $L\Sigma(\kappa)$-spaces.47-50 Open Problems in Topology II E. Pearl Elsevier (2007). |
| Reference:
|
[Todor] Todorčević S.: Partition Problems in Topology.American Mathematical Society, Providence (1989). MR 0980949 |
| . |
