Demetrovics, János; Hencsey, Gusztáv; Libkin, Leonid; Muchnik, Ilya On the interaction between closure operations and choice functions with applications to relational databases. (English) Zbl 0787.68032 Acta Cybern. 10, No. 3, 129-139 (1992). Summary: A correspondence between closure operations and special choice functions on a finite set is established. This correspondence is applied to study functional dependencies in relational databases. Cited in 4 Documents MSC: 68P15 Database theory 06A15 Galois correspondences, closure operators (in relation to ordered sets) Keywords:choice functions on finite set; closure operations; functional dependencies; relational databases PDFBibTeX XMLCite \textit{J. Demetrovics} et al., Acta Cybern. 10, No. 3, 129--139 (1992; Zbl 0787.68032)