Title:
|
The counterparts of some cardinal functions in bitopological spaces. II. (English) |
Author:
|
Diker, Murat |
Language:
|
English |
Journal:
|
Mathematica Bohemica |
ISSN:
|
0862-7959 (print) |
ISSN:
|
2464-7136 (online) |
Volume:
|
120 |
Issue:
|
3 |
Year:
|
1995 |
Pages:
|
247-254 |
Summary lang:
|
English |
. |
Category:
|
math |
. |
Summary:
|
In this paper, bitopological counterparts of the cardinal functions Lindelof number, weak Lindelof number and spread are introduced and studied. Some basic relations between these functions and the functions in [3] are given. (English) |
Keyword:
|
weak bi-Lindelöf number |
Keyword:
|
bispread |
Keyword:
|
bi-quasi-uniform weight |
Keyword:
|
bi-Lindelöf number |
MSC:
|
54A25 |
MSC:
|
54E55 |
idZBL:
|
Zbl 0860.54004 |
idMR:
|
MR1369683 |
DOI:
|
10.21136/MB.1995.126007 |
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Date available:
|
2009-09-24T21:11:19Z |
Last updated:
|
2020-07-29 |
Stable URL:
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http://hdl.handle.net/10338.dmlcz/126007 |
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Reference:
|
[1] L. M. Brown: On extensions of bitopological spaces.Coiloquia Mathematica Societatis Janos Bolyai, 23, Topology, Budapest, 1978. |
Reference:
|
[2] L. M. Brown: Dual covering theory, confluence structures and the lattice of bicontinuous functions.PҺD Thesis Univ. of Glasgow, 1980. |
Reference:
|
[3] M. Diker: The counterparts of some cardinal functions in bitopoiogical spaces I.Mathematica Bohemica 120 (1995), 237-245. MR 1369683 |
Reference:
|
[4] T. E. Gаntner R. C. Steinlаge: Characterization of quasi uniformities.J. London Math. Soc. Ser. 5 11 (1972), 48-52. |
Reference:
|
[5] I. Juhász: Caгdinal functions in topology.Math. Center Tracts No. 34, Math. Centrum, Amsterdam, 1971. MR 0340021 |
Reference:
|
[6] I. Juhász: Caгdinal functions in topology ten years later.Math. Center Tracts No. 123, Math. Centrum, Amsterdam, 1980. MR 0576927 |
Reference:
|
[7] R. D. Kopperman P. R. Meyer: Cardinal invariants of bitopological spaces.Časopis pro pěstování matematiky 114 (1989), no. 4, 374-380. MR 1027233 |
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