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On infinite direct sums of lifting modules.) is an injective right (Formula presented.)-module with essential socle. We also prove that if every essential

Modules close to the automorphism-invariant and coinvariant where some well-known results on essentially injective modules, automorphism-(co)invariant modules

On infinite direct sums of lifting modules essential extension of ⊗i ϵ NE(Si) is a direct sum of lifting modules, where E(-) denotes the injective hull

On infinite direct sums of lifting modules.) is an injective right (Formula presented.)-module with essential socle. We also prove that if every essential

Regular semiartinian ringsWe study the structure of rings over which every right module is an essential extension of a

Regular semiartinian ringsWe study the structure of rings over which every right module is an essential extension of a

V-semiringsWe investigate the semirings over which all simple semimodules are injective. In ring and module

On (weakly) co-Hopfian automorphism-invariant modules-Hopfian if and only if E(M) is co-Hopfian. The module M is called weakly co-Hopfian if any injective endomorphism of M

Direct Projective Modules, Direct Injective Modules, and their Generalizations and direct injective modules. The main results are presented with proofs.

Semisimple-direct-injective modulesThe notion of simple-direct-injective modules which are a generalization of injective modules

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