Skip to Main Content

Proceedings of the American Mathematical Society

Published by the American Mathematical Society since 1950, Proceedings of the American Mathematical Society is devoted to shorter research articles in all areas of pure and applied mathematics.

ISSN 1088-6826 (online) ISSN 0002-9939 (print)

The 2020 MCQ for Proceedings of the American Mathematical Society is 0.85.

What is MCQ? The Mathematical Citation Quotient (MCQ) measures journal impact by looking at citations over a five-year period. Subscribers to MathSciNet may click through for more detailed information.

 

Quotients of proximity spaces
HTML articles powered by AMS MathViewer

by Louis Friedler PDF
Proc. Amer. Math. Soc. 37 (1973), 589-594 Request permission

Abstract:

A characterization of the quotient proximity is given. It is used to find necessary and sufficient conditions for every proximity map on a space to be a topological quotient map. It is shown that a separated proximity space is compact iff every p-map on X with separated range is a proximity quotient map.
References
  • C. H. Dowker, Mappings of proximity structures, General Topology and its Relations to Modern Analysis and Algebra (Proc. Sympos., Prague, 1961) Academic Press, New York; Publ. House Czech. Acad. Sci., Prague, 1962, pp. 139–141. MR 0146792
  • J. R. Isbell, Uniform spaces, Mathematical Surveys, No. 12, American Mathematical Society, Providence, R.I., 1964. MR 0170323
  • Miroslav Katětov, Über die Berührungsräume, Wiss. Z. Humboldt-Univ. Berlin Math.-Natur. Reihe 9 (1959/1960), 685–691 (German, with Russian, English, and French summaries). MR 0184199
  • S. Leader, On clusters in proximity spaces, Fund. Math. 47 (1959), 205–213. MR 112120, DOI 10.4064/fm-47-2-205-213
  • S. MacDonald and S. Willard, Domains of paracompactness and regularity, Canadian J. Math. 24 (1972), 1079–1085. MR 313993, DOI 10.4153/CJM-1972-111-2
  • L. J. Nachman, Quotients of complete proximity spaces, Bull. Acad. Polon. Sci. Sér. Sci. Math. Astronom. Phys. 18 (1970), 17–20 (English, with Russian summary). MR 266150
  • V. Z. Poljakov, Open mappings of proximity spaces, Dokl. Akad. Nauk SSSR 155 (1964), 1014–1017 (Russian). MR 0172240
  • V. Z. Poljakov, Proximally open mappings of metric spaces, Dokl. Akad. Nauk SSSR 186 (1969), 1012–1015 (Russian). MR 0253278
  • A. H. Stone, Lecture notes, University of Rochester, Rochester, N.Y., 1967 (unpublished).
  • Stephen Willard, General topology, Addison-Wesley Publishing Co., Reading, Mass.-London-Don Mills, Ont., 1970. MR 0264581
Similar Articles
  • Retrieve articles in Proceedings of the American Mathematical Society with MSC: 54E05, 54C10
  • Retrieve articles in all journals with MSC: 54E05, 54C10
Additional Information
  • © Copyright 1973 American Mathematical Society
  • Journal: Proc. Amer. Math. Soc. 37 (1973), 589-594
  • MSC: Primary 54E05; Secondary 54C10
  • DOI: https://doi.org/10.1090/S0002-9939-1973-0402691-1
  • MathSciNet review: 0402691