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math.GR2013
On free products and amalgams of pomonoids
Bana Al Subaiei, James Renshaw
The study of amalgamation in the category of partially ordered monoids was initiated by Fakhuruddin in the 1980s. In 1986 he proved that, in the category of commutative pomonoids,…
math.GR2013
A short note on strongly flat covers of acts over monoids
Alex Bailey, James Renshaw
Recently two different concepts of covers of acts over monoids have been studied. That based on coessential epimorphisms and that based on Enochs' definition of a flat cover of a m…
math.GR2013
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…