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A Little More on Coz-Unique Frames

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Abstract

Coz-unique frames were defined and characterized by Banaschewski and Gilmour (J Pure Appl Algebra 157:1–22, 2001). In this note we give further characterizations of these frames along the lines of characterizations of absolutely z-embedded spaces obtained by Blair and Hager (Math Z 136:41–52, 1974) on the one hand, and by Hager and Johnson (Canad J Math 20:389–393, 1968) on the other. We also extend to frames certain characterizations of z-embedded spaces; namely, we give a characterization of coz-onto frame homomorphisms in terms of normal covers.

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  1. Department of Mathematical Sciences, University of South Africa, P.O. Box 392, 0003, Unisa, South Africa

    Themba Dube

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  1. Themba Dube
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Dube, T. A Little More on Coz-Unique Frames. Appl Categor Struct 17, 63–73 (2009). https://doi.org/10.1007/s10485-008-9125-8

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  • DOI: https://doi.org/10.1007/s10485-008-9125-8

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