Hostname: page-component-848d4c4894-nr4z6 Total loading time: 0 Render date: 2024-05-22T18:24:33.825Z Has data issue: false hasContentIssue false

A class of projective Stone algebras

Published online by Cambridge University Press:  17 April 2009

Ivo Düntsch
Affiliation:
Freie Universität, FB 10, Garystr. 21, 1000 Berlin 33, West Germany.
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.

We prove that a regular double Stone algebra is protective in the category of Stone algebras if and only if its centre is a projective Boolean algebra and its dense set is countably generated as a filter. It follows that every countable regular double Stone algebra is projective as a Stone algebra.

Type
Research Article
Copyright
Copyright © Australian Mathematical Society 1981

References

[1]Balbes, R. and Grätzer, G., “Injective and projective Stone algebras”, Duke Math. J. 38 (1971), 339347.Google Scholar
[2]Balbes, Raymond and Horn, Alfred, “Stone latticesDuke Math. J. 37 (1970), 537545.Google Scholar
[3]Chen, C.C. and Grätzer, G., “Stone lattices. I: Construction theorems”, Canad. J. Math. 21 (1969), 884894.CrossRefGoogle Scholar
[4]Düntsch, Ivo, “Projectivity, prime ideals and chain conditions of Stone algebras”, Algebra Universalis (to appear).Google Scholar
[5]Grätzer, George, Lattice theory. First concepts and distributive lattices (Freeman, San Francisco, California, 1971).Google Scholar
[6]Katrin˘ák, T., “Die freien Stoneschen Verbände und ihre Tripelcharakterisierung”, Acta Math. Acad. Sci. Hungar. 23 (1972), 315326.CrossRefGoogle Scholar
[7]Katrin˘ák, Tibor, “Construction of regular double p-algebras”, Bull. Soc. Roy. Sci. Liège 43 (1974), 283290.Google Scholar
[8]Varlet, J., “A regular variety of type (2, 2, 1, 1, 0, 0,)”, Algebra Universalis 2 (1972), 218223.CrossRefGoogle Scholar