On the lattice of varieties of completely regular semigroups
نویسندگان
چکیده
منابع مشابه
Canonical Varieties of Completely Regular Semigroups
Completely regular semigroups CR are regarded here as algebras with multiplication and the unary operation of inversion. Their lattice of varieties is denoted by L.CR/. Let B denote the variety of bands and L.B/ the lattice of its subvarieties. The mapping V → V ∩ B is a complete homomorphism of L.CR/ onto L.B/. The congruence induced by it has classes that are intervals, say VB = [VB ;V B] for...
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ژورنال
عنوان ژورنال: Journal of the Australian Mathematical Society. Series A. Pure Mathematics and Statistics
سال: 1983
ISSN: 0263-6115
DOI: 10.1017/s1446788700025726