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20142026
most citedThe cotorsion pair generated by the Gorenstein projective modules and -pure-injective modules

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math.RA2026

Weakly Sigma-cotorsion rings

Manuel Cortés-Izurdiaga, Sergio Estrada, José Manuel Fresneda

We study the class of rings for which every direct sum of injective -modules is cotorsion. We call them weakly -cotorsion rings. The defining property might be seen as th…