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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Showing 1 to 3 of 3 (0.14 seconds)

Spelling suggestions: "subject:"relationsalgebra"" "subject:"relationenmellan""

1

Varieties and Clones of Relational Structures / Varietäten und Klone relationaler Strukturen

Grabowski, Jens-Uwe 26 June 2002 (has links) (PDF)
We present an axiomatization of relational varieties, i.e., classes of relational structures closed under formation of products and retracts, by a certain class of first-order sentences. We apply this result to categorically equivalent algebras and primal algebras. We consider the relational varieties generated by structures with minimal clone, rigid structures and two-element structures.
Klon
kategoriell equivalente Algebren
primale Algebren
relationale Varietät
categorically equivalent algebras
clone
primal algebras
relational variety
ddc:27
rvk:SK 320
Algebraische Struktur
Klon
Relationenalgebra
2

Algebraic foundations of the Unifying Theories of Programming

Guttmann, Walter, January 2007 (has links)
Ulm, Univ., Diss., 2007.
3

Varieties and Clones of Relational Structures

Grabowski, Jens-Uwe 07 June 2002 (has links)
We present an axiomatization of relational varieties, i.e., classes of relational structures closed under formation of products and retracts, by a certain class of first-order sentences. We apply this result to categorically equivalent algebras and primal algebras. We consider the relational varieties generated by structures with minimal clone, rigid structures and two-element structures.
info:eu-repo/classification/ddc/27
ddc:27

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