Semiregular frames
Jan Paseka, Bohumil Šmarda (1990)
Archivum Mathematicum
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Jan Paseka, Bohumil Šmarda (1990)
Archivum Mathematicum
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Bernhard Banaschewski, Christopher Gilmour (1996)
Commentationes Mathematicae Universitatis Carolinae
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A characterization of the cozero elements of a frame, without reference to the reals, is given and is used to obtain a characterization of pseudocompactness also independent of the reals. Applications are made to the congruence frame of a -frame and to Alexandroff spaces.
Nizar Marcus (1995)
Commentationes Mathematicae Universitatis Carolinae
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We give a construction of Wallman-type realcompactifications of a frame by considering regular sub -frames the join of which generates . In particular, we show that the largest such regular sub -frame gives rise to the universal realcompactification of .