Between ${\cal A}$- and ${\cal B}$-sets

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The aim of this paper is to introduce the class of ${\cal A}{\cal B}$-sets as the sets that are the intersection of an open and a semi-regular set. Several classes of well-known topological spaces are characterized via the new concept. A new decomposition of continuity is provided.
to appear in "Mathematica Balkanica"

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General Topology, 54G05; 54H05; 54C05; 54C08; 54G99

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http://salesiana.dossiersoluciones.com/handle/123456789/77642

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/9811002
 http://arxiv.org/abs/math/9811002

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arXiv