Decomposition of injective modules relative to a torsion theory |
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Authors: | José L. Bueso Pascual Jara Blas Torrecillas |
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Affiliation: | (1) Departmento de Algebra y Fundamentos, Facultad de Ciencias, Universidad de Granada, 18071 Granada, Spain |
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Abstract: | IfR is a right noetherian ring, the decomposition of an injective module, as a direct sum of uniform submodules, is well known. Also, this property characterises this kind of ring. M. L. Teply obtains this result for torsion-free injective modules. The decomposition of injective modules relative to a torsion theory has been studied by S. Mohamed, S. Singh, K. Masaike and T. Horigone. In this paper our aim is to determine those rings satisfying that every torsion-freeτ-injective module is a direct sum ofτ-uniformτ-injective submodules and also to determine those rings with the same property for everyτ-injective module. |
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