More on κ -Ohio completeness

D. Basile

Commentationes Mathematicae Universitatis Carolinae (2011)

  • Volume: 52, Issue: 4, page 551-559
  • ISSN: 0010-2628

Abstract

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We study closed subspaces of κ -Ohio complete spaces and, for κ uncountable cardinal, we prove a characterization for them. We then investigate the behaviour of products of κ -Ohio complete spaces. We prove that, if the cardinal κ + is endowed with either the order or the discrete topology, the space ( κ + ) κ + is not κ -Ohio complete. As a consequence, we show that, if κ is less than the first weakly inaccessible cardinal, then neither the space ω κ + , nor the space κ + is κ -Ohio complete.

How to cite

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Basile, D.. "More on $\kappa $-Ohio completeness." Commentationes Mathematicae Universitatis Carolinae 52.4 (2011): 551-559. <http://eudml.org/doc/246569>.

@article{Basile2011,
abstract = {We study closed subspaces of $\kappa $-Ohio complete spaces and, for $\kappa $ uncountable cardinal, we prove a characterization for them. We then investigate the behaviour of products of $\kappa $-Ohio complete spaces. We prove that, if the cardinal $\kappa ^+$ is endowed with either the order or the discrete topology, the space $(\kappa ^+)^\{\kappa ^+\}$ is not $\kappa $-Ohio complete. As a consequence, we show that, if $\kappa $ is less than the first weakly inaccessible cardinal, then neither the space $\omega ^\{\kappa ^+\}$, nor the space $\mathbb \{R\}^\{\kappa ^+\}$ is $\kappa $-Ohio complete.},
author = {Basile, D.},
journal = {Commentationes Mathematicae Universitatis Carolinae},
keywords = {$\kappa $-Ohio complete; compactification; subspace; product; -Ohio complete space; closed hereditary property; product space; compactification},
language = {eng},
number = {4},
pages = {551-559},
publisher = {Charles University in Prague, Faculty of Mathematics and Physics},
title = {More on $\kappa $-Ohio completeness},
url = {http://eudml.org/doc/246569},
volume = {52},
year = {2011},
}

TY - JOUR
AU - Basile, D.
TI - More on $\kappa $-Ohio completeness
JO - Commentationes Mathematicae Universitatis Carolinae
PY - 2011
PB - Charles University in Prague, Faculty of Mathematics and Physics
VL - 52
IS - 4
SP - 551
EP - 559
AB - We study closed subspaces of $\kappa $-Ohio complete spaces and, for $\kappa $ uncountable cardinal, we prove a characterization for them. We then investigate the behaviour of products of $\kappa $-Ohio complete spaces. We prove that, if the cardinal $\kappa ^+$ is endowed with either the order or the discrete topology, the space $(\kappa ^+)^{\kappa ^+}$ is not $\kappa $-Ohio complete. As a consequence, we show that, if $\kappa $ is less than the first weakly inaccessible cardinal, then neither the space $\omega ^{\kappa ^+}$, nor the space $\mathbb {R}^{\kappa ^+}$ is $\kappa $-Ohio complete.
LA - eng
KW - $\kappa $-Ohio complete; compactification; subspace; product; -Ohio complete space; closed hereditary property; product space; compactification
UR - http://eudml.org/doc/246569
ER -

References

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  1. Arhangel'skii A.V., 10.1016/j.topol.2004.10.015, Topology Appl. 150 (2005), 79–90. Zbl1075.54012MR2133669DOI10.1016/j.topol.2004.10.015
  2. Basile D., κ -Ohio completenss and related problems, Doctoral Thesis, Vrije Universiteit, Amsterdam, 2009. 
  3. Basile D., van Mill J., 10.1016/j.topol.2007.09.005, Topology Appl. 155 (2008), no. 4, 180–189. Zbl1147.54012MR2380256DOI10.1016/j.topol.2007.09.005
  4. Basile D., van Mill J., Ridderbos G.J., 10.4064/cm113-1-6, Colloq. Math. 113 (2008), 91–104. Zbl1149.54014MR2399666DOI10.4064/cm113-1-6
  5. Basile D., van Mill J., Ridderbos G.J., 10.2969/jmsj/06141293, J. Math. Soc. Japan 61 (2009), no. 4, 1293–1301. Zbl1186.54024MR2588512DOI10.2969/jmsj/06141293
  6. Engelking R., General Topology, second ed., Heldermann, Berlin, 1989. Zbl0684.54001MR1039321
  7. Glicksberg I., Stone-Čech compactifications of products, Trans. Amer. Math. Soc. 90 (1959), 369–382. Zbl0089.38702MR0105667
  8. Mycielski J., α -incompactness of N α , Bull. Acad. Polon. Sci. Sér. Sci. Math. Astronom. Phys. 12 (1964), 437–438. MR0211871
  9. Okunev O., Tamariz-Mascarúa A., 10.1016/S0166-8641(03)00213-X, Topology Appl. 137 (2004), no. 1–3, 237–249; IV Iberoamerican Conference on Topology and its Applications. Zbl1048.54010MR2057890DOI10.1016/S0166-8641(03)00213-X

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