Skip to main content
Log in

Reconstruction of the vietoris topology from compacta in the space of closed subgroups

  • Published:
Ukrainian Mathematical Journal Aims and scope

Abstract

It is proved that the space of closed subgroupsL (G) of a locally compact σ-compact group G is a k-space if and only if each noncompact subgroup of G can be represented as the intersection of a countable number of open sets.

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

Literature cited

  1. I. V. Protasov, “Compacta in the space of subgroups of a topological group,” Ukr. Mat. Zh.,38, No. 5, 600–605 (1986).

    Google Scholar 

  2. I. V. Protasov, “Limits of compact subgroups in topological groups,” Dokl. Akad. Nauk UkrSSR, No. 10, 64–66 (1986).

    Google Scholar 

  3. V. D. Mazurov, Yu. I. Merzlyakov, and V. A. Churkin (eds.), Kourov Notebook [in Russian], 9th ed., Inst. Mat. Sib. Otd. Akad. Nauk SSSR, Novosibirsk (1982).

    Google Scholar 

  4. A. G. Piskunov, “Cardinality of open σ-compact sets in the space of noncompact subgroups of a topological group,” Ukr. Mat. Zh.,40, No. 6, 815–819 (1988).

    Google Scholar 

  5. A. V. Arkhangel'skii and V. I. Ponomarev, Foundations of General Topology in Problems and Exercises [in Russian], Nauka, Moscow (1980).

    Google Scholar 

  6. R. Engelking, Outline of General Topology, American Elsevier, New York (1968).

    Google Scholar 

  7. I. V. Protasov, “Local theorems for topological groups,” Izv. Akad. Nauk SSSR, Ser. Mat.,43, No. 6, 1430–1440 (1979).

    Google Scholar 

  8. I. V. Protasov, “Topological groups with compact lattice of closed subgroups,” Sib. Mat. Zh.,20, No. 2, 378–385 (1979).

    Google Scholar 

  9. K. Kuratowsky, Topology, Academic Press, New York (1969).

    Google Scholar 

  10. E. Hewitt and K. Ross, Abstract Harmonic Analysis, Springer-Verlag, New York (1970).

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Additional information

Translated from Ukrainskii Matematicheskii Zhurnal, Vol. 42, No. 6, pp. 789–794, June, 1990.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Piskunov, A.G. Reconstruction of the vietoris topology from compacta in the space of closed subgroups. Ukr Math J 42, 697–701 (1990). https://doi.org/10.1007/BF01058916

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF01058916

Keywords

Navigation