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Almost QF rings with \(J^ 3=0\) - MaRDI portal

Almost QF rings with \(J^ 3=0\) (Q1327631)

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scientific article; zbMATH DE number 591445
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English
Almost QF rings with \(J^ 3=0\)
scientific article; zbMATH DE number 591445

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    Almost QF rings with \(J^ 3=0\) (English)
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    18 July 1994
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    The author has defined almost projective modules and almost injective modules [in J. Algebra 159, 150-157 (1993; Zbl 0795.16003)]. Let \(R\) be a two-sided artinian ring with identity. The author calls \(R\) a right almost QF ring in case \(R\) is almost injective as a right \(R\)-module. In this paper the author proves, among other things, that right almost QF rings are nothing but direct sums of serial rings and QF rings, provided \(J(R)^ 3 = 0\).
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    almost projective modules
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    almost injective modules
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    two-sided artinian ring
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    right almost QF rings
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    direct sums of serial rings
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