Semiprimary selfinjective algebras with at most countable dimensional Jacobson quotient are QF

preprint2011arXivOpen access

Abstract

We give a positive answer to a conjecture of Faith stating that a self-injective semiprimary ring is QF, for algebras which are at most countable dimensional modulo their Jacobson radical. As a consequence of the method used, we also give short proofs of several other known positive cases of this conjecture.

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