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math.GR2026
On the Dominions of Certain Semigroups of Transformations
Halima H. Assiri, Jehan A. Albar
In the full transformation semigroup on a finite chain , let be the subsemigroup of all order-decreasing maps of ,…
math.GR2010
Quasi-ideal transversals of abundant semigroups and spined products
Jehan Al-Bar, James Renshaw
We provide a new and much simpler structure for quasi-ideal adequate transversals of abundant semigroups in terms of spined products, which is similar in nature to that given by Sa…
math.GR2010
Adequate transversals of quasi-adequate semigroups
Jehan Al-Bar, James Renshaw
The concept of an adequate transversal of an abundant semigroup was introduced by El-Qallali in [8] whilst in [7], he and Fountain initiated the study of quasi-adequate semigroups…