Hostname: page-component-7479d7b7d-68ccn Total loading time: 0 Render date: 2024-07-10T11:17:43.352Z Has data issue: false hasContentIssue false

The regularity series of a convergence space

Published online by Cambridge University Press:  17 April 2009

G.D. Richardson
Affiliation:
Department of Mathematics, East Carolina University, Greenville, North Carolina, USA;
D.C. Kent
Affiliation:
Department of Pure and Applied Mathematics, Washington State University, Pullman, Washington, USA.
Rights & Permissions [Opens in a new window]

Abstract

Core share and HTML view are not available for this content. However, as you have access to this content, a full PDF is available via the ‘Save PDF’ action button.

The regularity series, or briefly R-series, of a convergence space is an ordinal sequence of spaces leading to the regular modification of the space. The behavior of this series is studied relative to such basic constructs as products, subspaces, and various quotient maps. Upper bounds on the length of the R-series are obtained for several classes of spaces. This series can be employed to construct regular completions and compactifications.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1975

References

[1]Biesterfeldt, H.J. Jr., “Regular convergence spaces”, K. Nederl. Akad. Wetensch. Proc. Ser. A 69 = Indag. Math. 28 (1966), 605607.CrossRefGoogle Scholar
[2]Čech, Eduard, Topological spaces, revised ed. (Publishing House of the Czechoslovak Academy of Sciences, Prague; Interscience [John Wiley & Sons], London, New York, Sydney; 1966).Google Scholar
[3]Cook, C.H. and Fischer, H.R., “Regular convergence spaces”, Math. Ann. 174 (1967), 17.CrossRefGoogle Scholar
[4]Fischer, H.R., “Limesräume”, Math. Ann. 137 (1959), 269303.CrossRefGoogle Scholar
[5]Frič, R., “Regularity and extension of mappings in sequential spaces”, Comment. Math. Univ. Carolinae 15 (1974), 161171.Google Scholar
[6]Gazik, R.J. and Kent, D.C., “Regular completions of Cauchy spaces via function algebras”, Bull. Austral. Math. Soc. 11 (1974), 7788.CrossRefGoogle Scholar
[7]Hearsey, Brian V., “Regularity in convergence spaces”, Portugal Math. 30 (1971), 201213.Google Scholar
[8]Kent, D.C. and Richardson, G.D., “Minimal convergence spaces”, Trans. Amer. Math. Soc. 160 (1971), 487499.CrossRefGoogle Scholar
[9]Kent, Darnell C. and Richardson, Gary D., “Open and proper maps between convergence spaces”, Czechoslovak Math. J. 23 (98) (1973), 1523.CrossRefGoogle Scholar
[10]Kent, Darnell C. and Richandson, Gany D., “The decomposition series of a convergence space”, Czechoslovak Math. J. 23 (98) (1973), 437446CrossRefGoogle Scholar
[11]Kent, D.C. and Richandson, G.D., “Regular completions of Cauchy spaces”, Pacific J. Math. 51 (1974), 483490.CrossRefGoogle Scholar
[12]Novák, Josef, “On convergence spaces and their sequential envelopes”, Czechoslovak Math. J. 15 (90) (1965), 74100.CrossRefGoogle Scholar
[13]Reed, Ellen E., “Completions of uniform convergence spaces”, Math. Am. 194 (1971), 83108.Google Scholar
[14]Richardson, G.D., “A Stone-Čech compactification for limit spaces”, Proc. Amer. Math. Soc. 25 (1970), 403404.Google Scholar
[15]Richardson, G.D., “Completions for a class of convergence groups”, Proc. Amer. Math. Soc. 39 (1973), 211213.CrossRefGoogle Scholar
[16]Richardson, G.D. and Kent, D.C., “Regular compactifications of convergence spaces”, Proc. Amer. Math. Soc. 31 (1972), 571573.CrossRefGoogle Scholar
[17]Wyler, Oswald, “Ein Komplettierungsfunktor für uniforme Limesräume”, Math. Nachr. 46 (1970), 120.CrossRefGoogle Scholar