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Certain homomorphisms of the lattice of varieties of completely simple semigroups

Part of: Semigroups

Published online by Cambridge University Press:  09 April 2009

Mario Petrich  and
Norman R. Reilly
Mario Petrich
Affiliation:
Simon Fraser UniversityBurnaby, British Columbia, Canada
Norman R. Reilly
Affiliation:
Simon Fraser UniversityBurnaby, British Columbia, Canada
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Abstract

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Completely simple semigroups form a variety, , of algebras with the operations of multiplication and inversion. It is known that the mapping , where is the variety of all groups, is an isomorphism of the lattice of all subvarieties of onto a subdirect product of the lattice of subvarieties of and the interval . We consider embeddings of into certain direct products on the above pattern with rectangular bands, rectangular groups and central completely simple semigroups in place of groups.

MSC classification

Secondary: 20M05: Free semigroups, generators and relations, word problems 20M07: Varieties and pseudovarieties of semigroups

Information

Type
Research Article
Information
Journal of the Australian Mathematical Society , Volume 37 , Issue 3 , December 1984 , pp. 287 - 306
Copyright
Copyright © Australian Mathematical Society 1984

References

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