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zbMath0787.68032MaRDI QIDQ4036173

Gusztáv Hencsey, Leonid O. Libkin, Ilya B. Muchnik, Janos Demetrovics

Publication date: 16 May 1993

Title: zbMATH Open Web Interface contents unavailable due to conflicting licenses.

zbMATH Keywords

closure operations relational databases functional dependencies choice functions on finite set

Mathematics Subject Classification ID

Database theory (68P15) Galois correspondences, closure operators (in relation to ordered sets) (06A15)

Related Items (4)

A survey of some combinatorial results concerning functional dependencies in database relations. ⋮ Isolated sublattices and their application to counting closure operators ⋮ Choice functions and extensive operators ⋮ Unnamed Item

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