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- W2157595211 abstract "In this paper quasi-codivisible covers are defined and investigated relative to a torsion theory (T, F) on Mod R . It is shown that if (T, F) is cohereditary, then a right R -module M has a quasi-codivisible cover whenever it has a codivisible cover. Moreover, it is shown that if (T, F) is cohereditary, then the universal existence of quasi-codivisible covers implies that the ring R / T ( R ) must be right perfect. The converse holds when (T, F) is pseudo-hereditary." @default.
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- W2157595211 date "1986-06-01" @default.
- W2157595211 modified "2023-09-26" @default.
- W2157595211 title "Quasi-codivisible covers" @default.
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- W2157595211 doi "https://doi.org/10.1017/s000497270000397x" @default.
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