Projective and injective bands with involution (Q1090774)
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scientific article; zbMATH DE number 4008679
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Projective and injective bands with involution |
scientific article; zbMATH DE number 4008679 |
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Projective and injective bands with involution (English)
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1987
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A set X with a binary idempotent associative operation \(\cdot\) and a unary operation \({}^*\) satisfying the identities \(x^{**}=x\), \(xx^*x=x\), \((xy)^*=y^*x^*\) is called a \({}^*band\). Injective and projective objects in varieties of \({}^*bands\) are described.
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bands with involution
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injective object
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projective objects
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varieties of \({}^ *bands\)
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0.86994827
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0.85303044
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0.8453361
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0.84352374
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