Stability, flatness and torsion in acts over monoids
نویسنده
چکیده
Our aim in this paper is to study the concept of stability for acts over monoids and in the process develop a more coherent framework for some of the current techniques and construction used in the homological classification of monoids. We also present some new results relating to torsion free acts over monoids and to the embeddability of semigroup amalgams.
منابع مشابه
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Valdis Laan in [5] introduced an extension of strong flatness which is called weak pullback flatness. In this paper we introduce a new property of acts over monoids, called U-WPF which is an extension of weak pullback flatness and give a classification of monoids by this property of their acts and also a classification of monoids when this property of acts implies others. We also show that regu...
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