Finiteness of global dimension of endomorphism algebra

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http://ift.tt/eA8V8J

Given a finite dimensional algebra A A with radical J J and Loewy length n n and socle length r r , let N:=A⊕A/J⊕A/J2⊕....A/Jn−1 N := A ⊕ A / J ⊕ A ...

from Algebra

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