|
Continuous selections and -spaces
Author(s):
Valentin
Gutev;
Vesko
Valov
Journal:
Proc. Amer. Math. Soc.
130
(2002),
233-242.
MSC (2000):
Primary 54C60, 54C65, 55M10
Posted:
May 22, 2001
Retrieve article in:
PDF
This article is available free of charge
Abstract |
References |
Similar articles |
Additional information
Abstract:
A characterization of paracompact -spaces via continuous selections avoiding -sets is given. The result is applied to prove a countable sum theorem for paracompact -spaces, and to obtain a new partial solution of a question raised by E. Michael.
References:
- 1.
- D. Addis and J. Gresham, A class of infinite-dimensional spaces. Part I: Dimension theory and Alexandroff's Problem, Fund. Math. 101 (1978), 195-205. MR 80b:54041
- 2.
- A. Chigogidze, Inverse Spectra, North-Holland, Amsterdam, 1996. MR 97g:54001
- 3.
- J. Dieudonne, Une généralisation des espaces compacts, J. de Math. Pures et Appl. 23 (1944), 65-76. MR 7:134f
- 4.
- C. H.Dowker, On countably paracompact spaces, Canad. J. of Math. 3 (1951), 219-224. MR 13:264c
- 5.
- V. Gutev, Continuous selections,
-subsets of Banach spaces and usco mappings, Comment. Math. Univ. Carolinae 35 (1994), no. 3, 533-538. MR 96i:54011 - 6.
- W. Haver, A covering property for metric spaces, Lecture Notes in Math. 375, Springer Verlag, New York, 1974. MR 51:1756
- 7.
- M. Katetov, On real-valued functions in topological spaces, Fund. Math. 38 (1951), 85-91. MR 14:304a
- 8.
- E. Michael, Continuous selections I, Ann. of Math. 63 (1956), 361-382. MR 17:990e
- 9.
- -, Continuous selections II, Ann. of Math. 64 (1956), 562-580. MR 18:325e
- 10.
- -, Continuous selections avoiding a set, Top. Appl. 28 (1988), 195-213. MR 90h:54025
- 11.
- -, Some problems, Open problems in Topology, J. van Mill and J. M. Reed (Editors), Chapter 17, 271-278, North-Holland, Amsterdam, 1990. CMP 91:03
- 12.
- J. van Mill, Infinite-dimensional Topology Prerequisites and Introduction, North-Holland, Amsterdam, 1989. MR 90a:57025
- 13.
- J. Munkres, Topology: a first course, Prentice Hall, Englewood Cliffs, NY, 1975. MR 57:4063
- 14.
- R. Pol, A weakly infinite-dimensional compactum which is not countable dimensional, Proc. Amer. Math. Soc. 82 (1981), 634-636. MR 82f:54059
- 15.
- H. Torynczyk, Concerning locally homotopy negligible sets and characterization of
-manifolds, Fund. Math. 101 (1978), 93-110. MR 80g:57019 - 16.
- V. Uspenskij, A selection theorem for
-spaces, Top. Appl. 85 (1998), 351-374. MR 99d:54013
Similar Articles:
Retrieve articles in Proceedings of the American Mathematical Society
with MSC
(2000):
54C60, 54C65, 55M10
Retrieve articles in all Journals with MSC
(2000):
54C60, 54C65, 55M10
Additional Information:
Valentin
Gutev
Affiliation:
School of Mathematical and Statistical Sciences, Faculty of Science, University of Natal, King George V Avenue, Durban 4041, South Africa
Email:
gutev@nu.ac.za
Vesko
Valov
Affiliation:
Department of Mathematics, Nipissing University, 100 College Drive, P. O. Box 5002, North Bay, Ontario, Canada P1B 8L7
Email:
veskov@unipissing.ca
DOI:
10.1090/S0002-9939-01-05995-0
PII:
S 0002-9939(01)05995-0
Keywords:
Continuous selection,
$C$-space,
$Z_\infty$-set
Received by editor(s):
November 17, 1999
Received by editor(s) in revised form:
May 9, 2000
Posted:
May 22, 2001
Communicated by:
Alan Dow
Copyright of article:
Copyright
2001,
American Mathematical Society
|