summary:The paper contains characterizations of semigroup varieties whose semigroups with one generator (two generators) are permutable. Here all varieties of regular $*$-semigroups are described in which each semigroup with two generators is permutable
A semigroup S satisfies PPn, the permutation property of degree n (n≥2) if every product of n elemen...
Let a be a non-invertible transformation of a finite set and let G be a group of permutations on t...
summary:A semigroup variety is called {\it modular\/} if it is a modular element of the lattice of a...
summary:The paper contains characterizations of semigroup varieties whose semigroups with one genera...
summary:The paper contains characterizations of semigroup varieties whose semigroups with one genera...
Summary. The paper contains characterizations of semigroup varieties whose semigroups with one gener...
We completely determine all varieties of monoids on whose free objects all fully invariant congruenc...
AbstractIt is shown that every semigroup variety admitting the permutation identity x1x2 … xn = x1πx...
AbstractGiven a permutation σ∈Sn, a semigroup S is called σ-permutable if x1x2···xn=xσ(1)xσ(2)···xσ(...
Semigroups whose congruences form a chain are often termed ∆-semigroups. The commutative ∆-semigroup...
A semigroup variety is a Rees–Sushkevich variety if it is contained in a periodic variety generated ...
The ‘permutation property’, P, for semigroups has recently been introduced and studied by several au...
Let a be a non-invertible transformation of a finite set and let G be a group of permutations on t...
AbstractIn this paper we describe the varieties of commutative semigroups that are meet- and join-ir...
J.M. Howie, the influential St Andrews semigroupist, claimed that we value an area of pure mathemati...
A semigroup S satisfies PPn, the permutation property of degree n (n≥2) if every product of n elemen...
Let a be a non-invertible transformation of a finite set and let G be a group of permutations on t...
summary:A semigroup variety is called {\it modular\/} if it is a modular element of the lattice of a...
summary:The paper contains characterizations of semigroup varieties whose semigroups with one genera...
summary:The paper contains characterizations of semigroup varieties whose semigroups with one genera...
Summary. The paper contains characterizations of semigroup varieties whose semigroups with one gener...
We completely determine all varieties of monoids on whose free objects all fully invariant congruenc...
AbstractIt is shown that every semigroup variety admitting the permutation identity x1x2 … xn = x1πx...
AbstractGiven a permutation σ∈Sn, a semigroup S is called σ-permutable if x1x2···xn=xσ(1)xσ(2)···xσ(...
Semigroups whose congruences form a chain are often termed ∆-semigroups. The commutative ∆-semigroup...
A semigroup variety is a Rees–Sushkevich variety if it is contained in a periodic variety generated ...
The ‘permutation property’, P, for semigroups has recently been introduced and studied by several au...
Let a be a non-invertible transformation of a finite set and let G be a group of permutations on t...
AbstractIn this paper we describe the varieties of commutative semigroups that are meet- and join-ir...
J.M. Howie, the influential St Andrews semigroupist, claimed that we value an area of pure mathemati...
A semigroup S satisfies PPn, the permutation property of degree n (n≥2) if every product of n elemen...
Let a be a non-invertible transformation of a finite set and let G be a group of permutations on t...
summary:A semigroup variety is called {\it modular\/} if it is a modular element of the lattice of a...
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