Rings Related to Mininjective and Min-Flat Modules
Rings Related to Mininjective and Min-Flat Modules
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DOI:
10.1080/00927870902828504
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发表时间:
2009-10
影响因子:
0.7
通讯作者:
L. Mao
中科院分区:
文献类型:
--
作者:
L. Mao
R is called a left PS (resp. left min-coherent, left universally mininjective) ring if every simple left ideal is projective (resp. finitely presented, a direct summand of R). We first investigate when the endomorphism ring of a module is a PS ring, a min-coherent ring, or a universally mininjective ring. Then we characterize PS rings and universally mininjective rings in terms of endomorphisms of mininjective and min-flat modules. Finally, we study commutative min-coherent rings and (universally) mininjective rings using properties of homomorphism modules of special modules.