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Transactions of the American Mathematical Society
Transactions of the American Mathematical Society
ISSN 1088-6850(online) ISSN 0002-9947(print)

 

Commuting fully invariant congruences on free completely regular semigroups


Author: F. Pastijn
Journal: Trans. Amer. Math. Soc. 323 (1991), 79-92
MSC: Primary 20M07; Secondary 08B15
MathSciNet review: 1016809
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Abstract: We show that "almost all" fully invariant congruences on every free completely regular semigroup commute. From this it is shown that the lattice of completely regular semigroup varieties is arguesian.


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DOI: http://dx.doi.org/10.1090/S0002-9947-1991-1016809-9
PII: S 0002-9947(1991)1016809-9
Article copyright: © Copyright 1991 American Mathematical Society