Geodesic
More on quasi-Frobenius rings
Sbornik. Mathematics, Tome 21 (1973) no. 4, pp. 511-522 Cet article a éte moissonné depuis la source Math-Net.Ru

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Let $R$ be a ring and $J$ its Jacobson radical. Let us set $J^1=J$, $J^\alpha=JJ^{\alpha-1}$, and $J^\alpha=\bigcap_{\beta<\alpha}J^\beta$ if $\alpha$ is a limit ordinal. We call a ring an annihilating ring if the left (right) annihilator of the right (left) annihilator of an arbitrary left (right) ideal $I$ is $I$ itself. We prove that a ring $R$ is quasi-Frobenius if and only if it is a left self-injective annihilating ring and $J^\alpha=0$ for some transfinite $\alpha$. Bibliography: 15 titles. 
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     title = {More on {quasi-Frobenius} rings},
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L. A. Skornyakov. More on quasi-Frobenius rings. Sbornik. Mathematics, Tome 21 (1973) no. 4, pp. 511-522. http://geodesic.mathdoc.fr/item/SM_1973_21_4_a1/

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