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On the lattice of principal generalized topologies
In this paper we investigate the structure of the complete lattice of principal generalized topologies, employing the notion of ultratopology. On any...
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Ultratopologies generated by generalized topologies
It is proved a rather general version of the statement that if the union of arbitrary elements of a system λ always belongs to λ then the...
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Lattice Theory
The present survey is devoted to results in the papers on lattice theory reviewed in Referativnyi Zhurnal (Mat.) during 1965–1968, and is a natural...