Results 261 to 270 of about 2,135,754 (315)
Some of the next articles are maybe not open access.
Categories of Relations and Functional Relations
Applied Categorical Structures, 2000Abstract: "We define relations and their composition in a category with ([Epsilon,Mu])-factorization structure, with [Mu] consisting of monomorphisms, but [Epsilon] not restricted to epimorphisms. We obtain an associativity criterion for composition of relations, and we study functional and induced relations."
Romaine Jayewardene, Oswald Wyler
openaire +2 more sources
Relation algebra with multi-relations
International Journal of Computer Mathematics, 1998This report proposes a theory of multi-relations, which are similar to normal mathematical relations, except for the fact that each tuple has a given multiplicity. It is shown that most of the set-oriented operations on relations, such as union and intersection can be generalised (in the same way in which sets can be generalised to multisets).
Feijs, L.M.G., Krikhaar, R.L.
openaire +2 more sources
Relational Contexts and Relational Concepts
Fundamenta Informaticae, 2010Formal concept analysis (FCA) is a mathematical description and theory of concepts implied in formal contexts. And the current formal contexts of FCA aim to model the binary relations between individuals (objects) and attributes in the real world. In the real world we usually describe each individual by some attributes, which induces the relations ...
Feng Jiang, Yuefei Sui, Cungen Cao
openaire +1 more source
The clone relation of a binary relation
Information Sciences, 2017zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hassane Bouremel +3 more
openaire +2 more sources
On Normalization of Relations in Relational Databases
Programming and Computer Software, 2002zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire +1 more source
Relational Databases with Ordered Relations
Logic Journal of the IGPL, 2005Summary: The paper deals with expressing preferences in the framework of the relational data model. Preferences have usually a form of a partial ordering. Therefore the question arises how to provide the relational data model with such an ordering.
openaire +1 more source
2020
Identifies and explores the concept of relation in Balibar’s work and offers a genealogical account of the “ontology of relation.”
openaire +1 more source
Identifies and explores the concept of relation in Balibar’s work and offers a genealogical account of the “ontology of relation.”
openaire +1 more source