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- Title
On Rees weakly projective right acts.
- Authors
Knauer, U.; Oltmanns, H.
- Abstract
In this article, we present an extension of the concept of weakly projective acts to the socalled ( S/I, S/J)-projective acts. Retracts, coproducts, and products of acts as well as Rees factor acts are considered from the point of view of these properties. They are used to describe monoids that are disjoint unions of a group with a left zero semigroup or with a disjoint union of simple right ideals. We suggest concepts of weak QF-monoids.
- Subjects
MONOIDS; QUASI-Frobenius rings; PROJECTIVE modules (Algebra); SEMIGROUPS (Algebra); AMALGAMS (Group theory)
- Publication
Journal of Mathematical Sciences, 2006, Vol 139, Issue 4, p6715
- ISSN
1072-3374
- Publication type
Article
- DOI
10.1007/s10958-006-0386-1