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AAA61: 61st Workshop on General Algebra + 16th Conference of Young Algebraists
February 2-4, 2001
TU Darmstadt
Darmstadt, Germany

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Abstract relational algebras in the sense of E.F. Codd
by
Janis Cirulis
University of Latvia

Let A be a right normal band possessing the upper bound property w.r.t. its natural ordering. By a relation over A we mean a subset R of any L-equivalence class of A, where L is the right Green's equivalence on A. We turn the set Rel of all relations over A into an algebra of relations, and show that such algebras can be treated an abstract version of Codd's relational algebras.

Date received: December 27, 2000

Copyright © 2000 by the author(s). The author(s) of this document and the organizers of the conference have granted their consent to include this abstract in Atlas Conferences Inc. Document # cafo-38.