leblon: (farns)
[personal profile] leblon
Is it true that an algebra whose Jacobson radical vanishes is semi-simple (in the usual sense)? Or at least is it true for finite-dimensional algebras?

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Date: 2013-03-10 03:18 pm (UTC)
From: [identity profile] leblon.livejournal.com
Спасибо! Я нашел доказательство в книжке Lam, A First Course on Noncommutative Rings.

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