Friday, 1 March 2013

Radical of a ring

In ring theory, a branch of mathematics, a radical of a ring is an ideal of "bad" elements of the ring. The first example of a radical was the nilradical introduced in, based on a suggestion in. In the next few years several other radicals were discovered, of which the most important example is the Jacobson radical. The general theory of radicals was defined independently by and Kurosh.

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