In the present paper, we study simple-direct-injective modules and simple-direct-projective modules over a formal matrix ring K = (R M N S) , where M is an (R, S)-bimodule and N is a (S, R)-bimodule over rings R and S. We determine necessary and sufficient conditions for a K-module to be, respectively, simple-direct-injective or simple-direct-projective. We also give some examples to illustrate and delimit our results.
机构:
Univ Kashan, Fac Math Sci, Dept Pure Math, Kashan, Iran
Inst Res Fundamental Sci IPM, Sch Math, Tehran, IranUniv Kashan, Fac Math Sci, Dept Pure Math, Kashan, Iran
Eshraghi, H.
Hafezi, R.
论文数: 0引用数: 0
h-index: 0
机构:
Inst Res Fundamental Sci IPM, Sch Math, Tehran, Iran
Univ Isfahan, Dept Math, Esfahan, IranUniv Kashan, Fac Math Sci, Dept Pure Math, Kashan, Iran
Hafezi, R.
Salarian, Sh.
论文数: 0引用数: 0
h-index: 0
机构:
Inst Res Fundamental Sci IPM, Sch Math, Tehran, Iran
Univ Isfahan, Dept Math, Esfahan, IranUniv Kashan, Fac Math Sci, Dept Pure Math, Kashan, Iran
Salarian, Sh.
Li, Z. W.
论文数: 0引用数: 0
h-index: 0
机构:
Jiangsu Normal Univ, Dept Math, Xuzhou 221116, Peoples R ChinaUniv Kashan, Fac Math Sci, Dept Pure Math, Kashan, Iran