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122 research outputs found

Logical Rewritings for Improving the evaluation of Quantified Queries

Author: Bry François
Demetrovics János
Publication venue
Publication date: 01/01/1989
Field of study

Open Access LMU

On the equivalence of candidate keys with Sperner systems

Author: Demetrovics János
Publication venue
Publication date: 01/01/1979
Field of study

University of Szeged

Normal form relation schemes : a new characterization

Author: Demetrovics János
Publication venue
Publication date: 01/01/1992
Field of study

University of Szeged

On the interaction between closure operations and choice functions with applications to relational databases

Author: Demetrovics János
Publication venue
Publication date: 01/01/1992
Field of study

University of Szeged

On the functional dependency and some generalizations of it

Author: Demetrovics János
Gyepesi György
Publication venue
Publication date: 01/01/1981
Field of study

University of Szeged

The cardinality of closed sets in pre-complete classes in k-valued logics

Author: Demetrovics János
Hannák László
Publication venue
Publication date: 01/01/1979
Field of study

University of Szeged

Some results about functional dependencies

Author: Demetrovics János
Thi Vu Duc
Publication venue
Publication date: 01/01/1988
Field of study

University of Szeged

Relations and minimal keys

Author: Demetrovics János
Thi Vu Duc
Publication venue
Publication date: 01/01/1988
Field of study

University of Szeged

Some remarks on generating Armstron and inferring functional dependencies relation

Author: Demetrovics János
Thi Vu Duc
Publication venue
Publication date: 01/01/1995
Field of study

University of Szeged

O sravnenii predel'nyh logik pri modelirovanii v nih konečno-značnyh logik

Author: Demetrovics János
Publication venue
Publication date: 01/01/1976
Field of study

University of Szeged

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