On permutability in semigroup varieties

Bedřich Pondělíček

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Displaying similar documents to “On permutability in semigroup varieties”

A multiplication of e-varieties of regular $E$ -solid semigroups by inverse semigroup varieties

Martin Kuřil (1997)

Archivum Mathematicum

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A multiplication of e-varieties of regular $E$ -solid semigroups by inverse semigroup varieties is described both semantically and syntactically. The associativity of the multiplication is also proved.

Residual finiteness in completely regular semigroup varieties.

P.G. Trotter, F.J. Pastijn (1988)

Semigroup forum

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On varieties of completely regular semigroups.

L. Polák (1985)

Semigroup forum

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A multiplication of $e$ -varieties of orthodox semigroups

Martin Kuřil (1995)

Archivum Mathematicum

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We define semantically a partial multiplication on the lattice of all e–varieties of regular semigroups. In the case that the first factor is an e–variety of orthodox semigroups we describe our multiplication syntactically in terms of biinvariant congruences.

Displaying similar documents to “On permutability in semigroup varieties”

A multiplication of e-varieties of regular E -solid semigroups by inverse semigroup varieties

Residual finiteness in completely regular semigroup varieties.

On varieties of completely regular semigroups.

A multiplication of e -varieties of orthodox semigroups

A multiplication of e-varieties of regular $E$ -solid semigroups by inverse semigroup varieties

A multiplication of $e$ -varieties of orthodox semigroups