Generalized varieties of commutative and nilpotent semigroups.
Generating countable sets of surjective functions
We prove that any countable set of surjective functions on an infinite set of cardinality ℵₙ with n ∈ ℕ can be generated by at most n²/2 + 9n/2 + 7 surjective functions of the same set; and there exist n²/2 + 9n/2 + 7 surjective functions that cannot be generated by any smaller number of surjections. We also present several analogous results for other classical infinite transformation semigroups such as the injective functions, the Baer-Levi semigroups, and the Schützenberger monoids.
Generators and relations of Abelian semigroups and semigroup rings.
Generators in the category of S-posets
The paper contains characterizations of generators and cyclic projective generators in the category of ordered right acts over an ordered monoid.
Generic result for the existence of a free semi-group
Genetický kód a teorie monoidů aneb 50 let od objevu struktury DNA
Globally Abelian transformation semigroups.
Globally determined semigroups.
Globals of completely regular periodic semigroups.
Goldie's theorem for semigroups.
Good and very good magnifiers
Un elemento di un semigruppo è un elemento accrescitivo sinistro se la traslazione di , associata all'elemento , è surgettiva e non è iniettiva (E. S. Ljapin, [13], § 5). Così, per ogni elemento accrescitivo sinistro , esiste un sottoinsieme proprio di tale che la restrizione a di è biunivoca. Se è un sottosemigruppo (risp. un ideale destro) di , l'elemento accrescitivo sinistro viene detto buono (risp. molto buono) (F. Migliorini [15], [16], [17]). Utilizzando il monoide biciclico,...
Grammaires algébriques et monoïdes simplifiables
Graph congruences and pair testing
Graph Monoids.
Graphs of semigroups
Gray-ordered binary necklaces.
Green ' s ....-relation for generalized polynomials.
Green's equivalences in finite semigroups of binary relations.
Green's J-relation for polynomials.
Green's L-relation for semigroups and compactifications.