Quasiidentities of finite unary algebras (Q915753)
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scientific article; zbMATH DE number 4152446
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Quasiidentities of finite unary algebras |
scientific article; zbMATH DE number 4152446 |
Statements
Quasiidentities of finite unary algebras (English)
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1989
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The author characterizes the 3-element unary algebras which have a finite basis of quasi-identities. This is done by exhibiting three forbidden reducts, one of them discovered by \textit{V. A. Gorbunov} [Algebra Logika 16, 507-548 (1977; Zbl 0403.08009)]. For larger finite unary algebras, one necessary and two sufficient conditions are formulated.
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finite basis of quasi-identities
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3-element unary algebras
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