Skip to main content
Log in

On Strict Extensions of Nearness Spaces

  • Published:
Applied Categorical Structures Aims and scope Submit manuscript

Abstract

Strict extensions of nearness spaces are constructed as spaces of round Cauchy filters. Morita's simple extension is identified as the strict extension generated by Morita-generated filters. Carlson's B-completeness is compared with Herrlich completeness and completeness of Morita T-uniformities. The three completeness concepts are shown to be equivalent in regular nearness spaces.

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. Carlson, J. W.: B-Completeness in nearness spaces, Gen. Topology Appl. 5 (1975), 263–268.

    Google Scholar 

  2. Harris, D.: Structures in topology, Mem. Amer. Math. Soc. 115 (1971).

  3. Hendrie, C. A.: Two problems in analytic topology, M.Sc. thesis, Oxford, 1980.

  4. Herrlich, H.: A concept of nearness, Gen. Topology Appl. 4 (1974), 191–212.

    Google Scholar 

  5. Herrlich, H.: Products in topology, Quaestiones Math. 2 (1977), 191–205.

    Google Scholar 

  6. Morita, K.: On the simple extension of a space with respect to a uniformity, I-IV, Proc. Acad. Japan 27 (1951), 65–72, 130–137, 166–171, 632–636.

    Google Scholar 

  7. Bentley, H. L. and Herrlich, H.: Morita-extensions and nearness-completions, Topology Appl. 82 (1998), 59–65.

    Google Scholar 

  8. Collins, P. J. and Hendrie, C. A.: On completeness in nearness spaces, Math. Arb. 48 (1997), 121–130.

    Google Scholar 

  9. Steiner, A. K. and Steiner, E. F.: On semi-uniformities, Fund. Math. 83 (1973), 47–58.

    Google Scholar 

Download references

Author information

Authors and Affiliations

Authors

Rights and permissions

Reprints and permissions

About this article

Cite this article

Collins, P.J., Hendrie, C.A. On Strict Extensions of Nearness Spaces. Applied Categorical Structures 8, 435–446 (2000). https://doi.org/10.1023/A:1008614929530

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1023/A:1008614929530

Navigation