On the U-WPF Acts over Monoids
نویسنده
چکیده مقاله:
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 regularity and strong faithfulness of acts both imply U-WPF. An equivalent of that over monoids for which torsion freeness implies U-WPF is given too.
منابع مشابه
on the u-wpf acts over monoids
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عنوان ژورنال
دوره 18 شماره 4
صفحات 323- 328
تاریخ انتشار 2007-12-01
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