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On essential extensions of direct sums of injective modules

✍ Scribed by K. I. Beidar; W.-F. Ke


Publisher
Springer
Year
2002
Tongue
English
Weight
69 KB
Volume
78
Category
Article
ISSN
0003-889X

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We characterize a ring over which every left module of finite length has an injective hull of finite length. Using this, we show that finite normalizing extensions of such a ring also have the same property. We also consider rings having the property that the injective hull of every simple module is