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Right product quasigroups and loops

Authors :
Kinyon, Michael K.
Krapež, Aleksandar
Phillips, J. D.
Source :
Quasigroups and Related Systems 19 (2011), 239-264
Publication Year :
2009

Abstract

Right groups are direct products of right zero semigroups and groups and they play a significant role in the semilattice decomposition theory of semigroups. Right groups can be characterized as associative right quasigroups (magmas in which left translations are bijective). If we do not assume associativity we get right quasigroups which are not necessarily representable as direct products of right zero semigroups and quasigroups. To obtain such a representation, we need stronger assumptions which lead us to the notion of \emph{right product quasigroup}. If the quasigroup component is a (one-sided) loop, then we have a \emph{right product (left, right) loop}. We find a system of identities which axiomatizes right product quasigroups, and use this to find axiom systems for right product (left, right) loops; in fact, we can obtain each of the latter by adjoining just one appropriate axiom to the right product quasigroup axiom system. We derive other properties of right product quasigroups and loops, and conclude by showing that the axioms for right product quasigroups are independent.<br />Comment: 15 pages; v2: minor corrections to author data

Details

Database :
arXiv
Journal :
Quasigroups and Related Systems 19 (2011), 239-264
Publication Type :
Report
Accession number :
edsarx.0903.5436
Document Type :
Working Paper