A note on dual discriminator varieties.
Ramalho, Margarita (2001)
Portugaliae Mathematica. Nova Série
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Ramalho, Margarita (2001)
Portugaliae Mathematica. Nova Série
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Jaromír Duda (1987)
Mathematica Slovaca
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Paweł M. Idziak, Ralph McKenzie (2001)
Fundamenta Mathematicae
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A characterization of locally finite congruence modular varieties with the number of at most k-generated models being bounded from above by a polynomial in k is given. These are exactly the varieties polynomially equivalent to the varieties of unitary modules over a finite ring of finite representation type.
Don Pigozzi (1981)
Colloquium Mathematicae
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Bjarni Jónsson (1979)
Colloquium Mathematicae
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Dietmar Schweigert (1988)
Banach Center Publications
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Ivan Chajda (2000)
Discussiones Mathematicae - General Algebra and Applications
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Varieties whose algebras have no idempotent element were characterized by B. Csákány by the property that no proper subalgebra of an algebra of such a variety is a congruence class. We simplify this result for permutable varieties and we give a local version of the theorem for varieties with nullary operations.
Graham D. Barbour, James G. Raftery (1997)
Czechoslovak Mathematical Journal
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