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2017-07-14
A "quite superfluous" characterisation of the Jacobson radical of an associative ring
Thomas Huettemann
文献摘要
It is well-known that the Jacobson radical of a unital ring is its largest superfluous right ideal. It is recorded here that the result carries over to non-unital rings provided the notion of “superfluous” is taken relative to all regular ideals.
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