Skip to main content
Log in

King spaces and compactness

  • Published:
Acta Mathematica Hungarica Aims and scope Submit manuscript

Abstract

Using the framework of weak selections, Nagao and Shakhmatov introduced topological king spaces, and extended the classical “King Chicken Theorem” by showing that each compact space with a continuous weak selection is a king space. They also obtained that several king spaces are compact, and raised the question whether every locally compact (or locally pseudocompact) king space must be compact. In the present paper, we settle this question in the affirmative.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Similar content being viewed by others

References

  1. Artico G., Marconi U., Pelant J., Rotter L., Tkachenko M.: Selections and suborderability. Fund. Math., 175, 1–33 (2002)

    Article  MathSciNet  MATH  Google Scholar 

  2. Colmez J.: Sur les espaces précompacts,. C. R. Acad. Sci. Paris, 233, 1552–1553 (1951)

    MathSciNet  MATH  Google Scholar 

  3. Eilenberg S.: Ordered topological spaces. Amer. J. Math., 63, 39–45 (1941)

    Article  MathSciNet  MATH  Google Scholar 

  4. García-Ferreira S., Sanchis M.: Weak selections and pseudocompactness. Proc. Amer. Math. Soc., 132, 1823–1825 (2004)

    Article  MathSciNet  MATH  Google Scholar 

  5. García-Ferreira S., García-Máynez A.: On weakly-pseudocompact spaces,. Houston J. Math., 20, 145–159 (1994)

    MathSciNet  MATH  Google Scholar 

  6. Gutev V.: Weak orderability of second countable spaces. Fund. Math., 196, 275–287 (2007)

    Article  MathSciNet  MATH  Google Scholar 

  7. V. Gutev, Selections and hyperspaces, in: Recent Progress in General Topology, III (K. P. Hart, J. van Mill and P. Simon, eds.), Atlantis Press, Springer (2014), pp. 535–579.

  8. Gutev V., Nogura T.: Selections and order-like relations. Appl. Gen. Topol., 2, 205–218 (2001)

    MathSciNet  MATH  Google Scholar 

  9. Gutev V., Nogura T.: Vietoris continuous selections and disconnectedness-like properties,. Proc. Amer. Math. Soc., 129, 2809–2815 (2001)

    Article  MathSciNet  MATH  Google Scholar 

  10. Gutev V., Nogura T.: Weak orderability of topological spaces,. Topology Appl., 157, 1249–1274 (2010)

    Article  MathSciNet  MATH  Google Scholar 

  11. Hewitt E.: Rings of real-valued continuous functions. I,. Trans. Amer. Math. Soc., 64, 45–99 (1948)

    Article  MathSciNet  MATH  Google Scholar 

  12. H. Kok, Connected Orderable Spaces, Mathematical Centre Tracts, No. 49, Mathematisch Centrum (Amsterdam, 1973).

  13. Kuratowski K., Nadler S.B., Young G.S.: Continuous selections and locally compact separable metric spaces. Bull. Polon. Acad. Sci., 18, 5–11 (1970)

    MathSciNet  MATH  Google Scholar 

  14. Landau H.G.: On dominance relations and the structure of animal societies. I Effect of inherent characteristics. Bull. Math. Biophys., 13, 1–19 (1951)

    Article  MathSciNet  Google Scholar 

  15. Maurer S.B.: The king chicken theorems,. Math. Mag., 53, 67–80 (1980)

    Article  MathSciNet  Google Scholar 

  16. Michael E.A.: Topologies on spaces of subsets,. Trans. Amer. Math. Soc., 71, 152–182 (1951)

    Article  MathSciNet  MATH  Google Scholar 

  17. Mill J.v., Wattel E.: Selections and orderability. Proc. Amer. Math. Soc., 83, 601–605 (1981)

    Article  MathSciNet  MATH  Google Scholar 

  18. Miyazaki K.: Continuous selections on almost compact spaces,. Sci. Math. Japan., 53, 489–494 (2001)

    MathSciNet  MATH  Google Scholar 

  19. Nagao M., Shakhmatov D.: On the existence of kings in continuous tournaments,. Topology Appl., 159, 3089–3096 (2012)

    Article  MathSciNet  MATH  Google Scholar 

  20. Purisch S.: The orderability and suborderability of metrizable spaces,. Trans. Amer. Math. Soc., 226, 59–76 (1977)

    Article  MathSciNet  MATH  Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Corresponding author

Correspondence to V. Gutev.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Gutev, V. King spaces and compactness. Acta Math. Hungar. 152, 1–10 (2017). https://doi.org/10.1007/s10474-017-0713-7

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s10474-017-0713-7

Key words and phrases

Mathematics Subject Classification

Navigation