4 papers
Weak Factorization Systems for S-acts
Alex Bailey, James Renshaw
The concept of a weak factorization system has been studied extensively in homotopy theory and has recently found an application in one of the proofs of the celebrated flat cover c…
Covers of acts over monoids II
Alex bailey, James Renshaw
In 1981 Edgar Enochs conjectured that every module has a flat cover and finally proved this in 2001. Since then a great deal of effort has been spent on studying different types of…
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…
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…