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Katetov's problem
Author(s):
Paul
Larson;
Stevo
Todorcevic
Journal:
Trans. Amer. Math. Soc.
354
(2002),
1783-1791.
MSC (2000):
Primary 54E35;
Secondary 03E35, 03E65, 54E45
Posted:
November 21, 2001
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Abstract:
In 1948 Miroslav Katetov showed that if the cube of a compact space satisfies the separation axiom T then must be metrizable. He asked whether can be replaced by in this metrization result. In this note we prove the consistency of this implication.
References:
-
- 1.
- I. Farah, OCA and towers in
, Comment. Math. Univ. Carolin. 37 (1996), no. 4, 861-866 MR 98f:03043 - 2.
- D.H. Fremlin, Consequences of Martin's axiom, Cambridge Tracts in Mathematics, 84. Cambridge University Press, Cambridge-New York, 1984 MR 86i:03001
- 3.
- S.A. Gaal, Point set topology, Pure and Applied Mathematics, Vol. XVI Academic Press, New York-London 1964 MR 30:1484
- 4.
- G. Gruenhage, P.J. Nyikos, Normality in
for compact , Trans. Amer. Math. Soc. 340 (1993), no. 2, 563-586 MR 94b:54009 - 5.
- R.W. Heath, Screenability, pointwise paracompactness and metrization of Moore spaces, Canadian J. Math. 16 (1964), 763-770 MR 29:4033
- 6.
- J. Hirschorn, Cohen and random reals, Ph.D. Thesis, University of Toronto, 2000
- 7.
- R.B. Jensen, R.M. Solovay, Some applications of almost disjoint sets, Mathematical Logic and Foundations of Set Theory (Proc. Internat. Colloq., Jerusalem, 1968) North-Holland, Amsterdam (1970) pp. 84-104 MR 44:6482
- 8.
- F.B. Jones, Concerning normal and completely normal spaces, Bull. Amer. Math. Soc. 43 (1937), 671-677
- 9.
- M. Katetov, Complete normality of Cartesian products, Fund. Math. 35, (1948) 271-274 MR 10:315h
- 10.
- K. Kunen, Set Theory. An introduction to independence proofs, Reprint of the 1980 original. Studies in Logic and the Foundations of Mathematics, 102. North-Holland Publishing Co., Amsterdam-New York, 1983 MR 85e:03003
- 11.
- K. Kunen, F.D. Tall, Between Martin's axiom and Souslin's hypothesis, Fund. Math. 102 (1979), no. 3, 173-181 MR 83e:03078
- 12.
- P. Larson, An
variation for one Souslin tree, J. Symbolic Logic 64 (1999), 81-98 MR 2000g:03118 - 13.
- P. Larson, S. Todorcevic, Chain conditions in maximal models, Fund. Math. 168 (2001), no. 1, 77-104
- 14.
- R. Laver, Random reals and Souslin trees, Proc. Amer. Math. Soc. 100 (1987), no. 3, 531-534 MR 88g:03068
- 15.
- T. Miyamoto,
-Souslin trees under countable support iterations, Fund. Math. 142 (1993), 257-261 MR 94f:03060 - 16.
- T. Miyamoto, Iterating semiproper preorders, J. Symbolic Logic, to appear
- 17.
- J. Moore, Ramsey theory on sets of reals, Ph. D. Thesis, University of Toronto, 2000
- 18.
- J. Moore, A counterexample to Katetov's problem, preprint, October 2000
- 19.
- T.C. Przymusinski, Products of normal spaces, Handbook of set-theoretic topology, 781-826, North-Holland, Amsterdam-New York, 1984 MR 86c:54007
- 20.
- J. Roitman, Adding a random or a Cohen real: topological consequences and the effect on Martin's axiom, Fund. Math. 103 (1979), no. 1, 47-60 MR 81h:03098
- 21.
- S. Shelah, J. Zapletal, Canonical Models for
Combinatorics, Annals of Pure and Applied Logic 98 (1999), 217-259 MR 2000m:03113 - 22.
- V.E. Sneider, V. E. Continuous images of Suslin and Borel sets. Metrization theorems, (Russian) Doklady Akad. Nauk SSSR (N.S.) 50, (1945). 77-79 MR 14:782d
- 23.
- F. Tall, Normality versus collectionwise normality, Handbook of set-theoretic topology, 685-732, North-Holland, Amsterdam-New York, 1984 MR 86m:54022
- 24.
- S. Todorcevic, Partition problems in topology, Contemporary Mathematics, 84. American Mathematical Society, Providence, RI, 1989 MR 90d:04001
- 25.
- S. Todorcevic, Random set-mappings and separability of compacta, Proceedings of the International Conference on Topology and its Applications (Matsuyama, 1994). Topology Appl. 74 (1996), no. 1-3, 265-274 MR 97j:03099
- 26.
- S. Todorcevic, Chain-condition methods in topology, Topology Appl. 101 (2000), no. 1, 45-82 MR 2001a:54055
- 27.
- W.H. Woodin, The axiom of determinacy, forcing axioms, and the nonstationary ideal, DeGruyter Series in Logic and Its Applications, vol. 1, 1999 MR 2001e:03001
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Additional Information:
Paul
Larson
Affiliation:
Department of Mathematics, University of Toronto, Toronto M5S 3G3, Canada
Email:
larson@math.toronto.edu
Stevo
Todorcevic
Affiliation:
C.N.R.S. (7056), Université Paris VII, 75251 Paris Cedex 05, France
Email:
stevo@math.jussieu.fr
DOI:
10.1090/S0002-9947-01-02936-1
PII:
S 0002-9947(01)02936-1
Keywords:
Compactness,
metrizability,
T$_{5}$,
forcing
Received by editor(s):
November 27, 2000
Received by editor(s) in revised form:
July 30, 2001
Posted:
November 21, 2001
Additional Notes:
This work was done while the authors were in residence at the Mittag-Leffler Institute. We thank the Institute for its hospitality.
Copyright of article:
Copyright
2001,
American Mathematical Society
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