Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Mária B. Szendrei"'
Autor:
Mária B. Szendrei
Publikováno v:
Semigroup Forum. 104:724-730
Autor:
Mária B. Szendrei, Pedro V. Silva
Publikováno v:
Semigroup Forum. 104:1-9
This paper was written as a tribute to Mario Petrich, a major figure in the history of semigroup theory. Publication is posthumous in view of his recent death.
Publikováno v:
Journal of Algebraic Combinatorics. 53:829-849
A partial automorphism of a finite graph is an isomorphism between its vertex-induced subgraphs. The set of all partial automorphisms of a given finite graph forms an inverse monoid under composition (of partial maps). We describe the algebraic struc
Autor:
Mária B. Szendrei
Publikováno v:
Semigroup Forum. 100:119-140
This survey aims to give an overview of several substantial developments of the last 50 years in the structure theory of regular semigroups and to shed light on their impact on other parts of semigroup theory.
Publikováno v:
Acta Scientiarum Mathematicarum. 85:381-411
We prove that if S is an E-solid locally inverse semigroup, and ρ is an inverse semigroup congruence on S such that the idempotent classes of p are completely simple semigroups thenSis embeddable into a λ-semidirectproduct of a completely simple se
Autor:
Mária B. Szendrei
Publikováno v:
Semigroup Forum. 89:280-291
A necessary and sufficient condition is provided for a (two-sided) restriction semigroup to be embeddable in a W-product of a semilattice by a monoid.
Autor:
Victoria Gould, Mária B. Szendrei
Publikováno v:
Acta Mathematica Hungarica. 141:36-57
Fountain and Gomes [4] have shown that any proper left ample semigroup embeds into a so-called W-product, which is a subsemigroup of a reverse semidirect product \({T\ltimes {\mathcal {Y}}}\) of a semilattice \({\mathcal {Y}}\) by a monoid T, where t
Autor:
Mária B. Szendrei
Publikováno v:
Communications in Algebra. 41:1458-1483
The notion of almost left factorizability and the results on almost left factorizable weakly ample semigroups, due to Gomes and the author, are adapted for restriction semigroups. The main result of the paper is that each restriction semigroup is emb
Autor:
Mária B. Szendrei
Publikováno v:
International Journal of Algebra and Computation. 21:1037-1052
We introduce a notion of almost factorizability within the class of all locally inverse semigroups by requiring a property of order ideals, and we prove that the almost factorizable locally inverse semigroups are just the homomorphic images of Pastij
Autor:
Mária B. Szendrei, Miklós Hartmann
Publikováno v:
Semigroup Forum. 84:157-175
It is established that an E-unitary almost factorizable orthodox semigroup need not be isomorphic to a semidirect product of a band by a group, and a necessary and sufficient condition is given for an E-unitary almost factorizable orthodox semigroup