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Zbl 0648.54020
Stramaccia, L.
S(n)-spaces and H-sets. (English)
[J] Commentat. Math. Univ. Carol. 29, No.2, 221-226 (1988). ISSN 0010-2628

Author's abstract: ``Let X be an $S(n)$-space, $n\in N$. By means of the $\theta\sp n$-closure operator,..., we define certain subspaces of X, called $S(n)$-sets, and study their relationships to H-sets and $\theta$- closed sets.'' \par \{Reviewer's comment: The exposition of the paper makes it difficult to follow. Crucial definitions [$S(n)$-space, in particular] appear long after the term has been used.\}
[D.E.Cameron]

MSC 2000:: *54D25 "P-minimal" and "P-closed" spaces
54B05 Subspaces (general topology)
54D10 Lower separation axioms

Keywords: $\theta\sp n$-closure operator; S(n)-sets; H-sets; $\theta$-closed sets

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